連云港脫水塔封頭制作廠無(wú)錫國(guó)鑫封頭供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="封頭屬壓力容器中鍋爐部件的一種。通常是在壓力容器的兩端使用的。再有就是在管道的末端做封堵之用的一種焊接管件產(chǎn)品。有比較多種的形式。接下來(lái)我為您介紹一下山東封頭的標(biāo)準(zhǔn)。我國(guó)現(xiàn)有的封頭標(biāo)準(zhǔn)，是按結(jié)構(gòu)型式(橢圓形、碟形、錐形)，連云港脫水塔封頭制"><meta name="keywords" content="連云港脫水塔封頭制作廠,封頭"><link rel="canonical" href="http://m.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://m.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu id="qgqbi"></menu><blockquote id="qgqbi"></blockquote><track id="qgqbi"><label id="qgqbi"></label></track><tbody id="qgqbi"></tbody><legend id="qgqbi"></legend><th id="qgqbi"><button id="qgqbi"></button></th><listing id="qgqbi"><rt id="qgqbi"></rt></listing><sup id="qgqbi"><dd id="qgqbi"><tbody id="qgqbi"></tbody></dd></sup><menu id="qgqbi"><xmp id="qgqbi"></xmp></menu><fieldset id="qgqbi"><acronym id="qgqbi"></acronym></fieldset><wbr id="qgqbi"><mark id="qgqbi"><strong id="qgqbi"></strong></mark></wbr><tbody id="qgqbi"><small id="qgqbi"></small></tbody><label id="qgqbi"><tfoot id="qgqbi"></tfoot></label><div id="qgqbi"><th id="qgqbi"><object id="qgqbi"></object></th></div><listing id="qgqbi"></listing><source id="qgqbi"><ins id="qgqbi"></ins></source><noframes id="qgqbi"></noframes><noscript id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"></tt></strike></noscript><strike id="qgqbi"><rp id="qgqbi"></rp></strike><dl id="qgqbi"></dl><th id="qgqbi"></th><acronym id="qgqbi"></acronym><center id="qgqbi"><input id="qgqbi"><div id="qgqbi"><th id="qgqbi"></th></div></input></center><label id="qgqbi"></label><tr id="qgqbi"><label id="qgqbi"><center id="qgqbi"></center></label></tr><menuitem id="qgqbi"><em id="qgqbi"><legend id="qgqbi"></legend></em></menuitem><pre id="qgqbi"></pre><fieldset id="qgqbi"><address id="qgqbi"><abbr id="qgqbi"><dl id="qgqbi"></dl></abbr></address></fieldset><sup id="qgqbi"><form id="qgqbi"></form></sup><form id="qgqbi"></form> <form id="qgqbi"></form><center id="qgqbi"><rp id="qgqbi"></rp></center><code id="qgqbi"></code><option id="qgqbi"><i id="qgqbi"><tr id="qgqbi"></tr></i></option><address id="qgqbi"></address><pre id="qgqbi"></pre><wbr id="qgqbi"></wbr><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"></bdo></delect></dl><table id="qgqbi"><p id="qgqbi"></p></table><label id="qgqbi"><xmp id="qgqbi"><noscript id="qgqbi"><dl id="qgqbi"></dl></noscript></xmp></label><cite id="qgqbi"></cite><acronym id="qgqbi"><object id="qgqbi"><big id="qgqbi"></big></object></acronym><rp id="qgqbi"></rp><tt id="qgqbi"></tt><output id="qgqbi"></output><table id="qgqbi"><p id="qgqbi"><ruby id="qgqbi"></ruby></p></table><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><u id="qgqbi"></u><bdo id="qgqbi"><tr id="qgqbi"><dfn id="qgqbi"></dfn></tr></bdo><strike id="qgqbi"><font id="qgqbi"></font></strike><s id="qgqbi"></s><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"><pre id="qgqbi"></pre></code></samp></acronym><cite id="qgqbi"></cite><form id="qgqbi"><dl id="qgqbi"><pre id="qgqbi"><label id="qgqbi"></label></pre></dl></form><center id="qgqbi"><rp id="qgqbi"></rp></center><font id="qgqbi"></font><menu id="qgqbi"></menu><small id="qgqbi"><strong id="qgqbi"><sup id="qgqbi"><form id="qgqbi"></form></sup></strong></small><label id="qgqbi"><tfoot id="qgqbi"><em id="qgqbi"></em></tfoot></label><optgroup id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></optgroup><label id="qgqbi"></label><meter id="qgqbi"><noframes id="qgqbi"><i id="qgqbi"><ins id="qgqbi"></ins></i></noframes></meter><kbd id="qgqbi"></kbd><b id="qgqbi"></b><dl id="qgqbi"><delect id="qgqbi"><th id="qgqbi"><span id="qgqbi"></span></th></delect></dl><font id="qgqbi"></font><small id="qgqbi"></small><mark id="qgqbi"></mark><del id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></del><dd id="qgqbi"><ruby id="qgqbi"><menu id="qgqbi"></menu></ruby></dd><th id="qgqbi"><em id="qgqbi"></em></th><abbr id="qgqbi"></abbr><span id="qgqbi"><kbd id="qgqbi"><dfn id="qgqbi"><sub id="qgqbi"></sub></dfn></kbd></span><ins id="qgqbi"></ins><s id="qgqbi"><progress id="qgqbi"></progress></s><th id="qgqbi"></th><bdo id="qgqbi"></bdo><blockquote id="qgqbi"></blockquote><b id="qgqbi"></b><nav id="qgqbi"><div id="qgqbi"></div></nav> <meter id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></meter><tfoot id="qgqbi"></tfoot><big id="qgqbi"><pre id="qgqbi"><s id="qgqbi"></s></pre></big><small id="qgqbi"></small><table id="qgqbi"><td id="qgqbi"><sup id="qgqbi"></sup></td></table><form id="qgqbi"><tr id="qgqbi"></tr></form><tr id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></tr><ul id="qgqbi"></ul><center id="qgqbi"><optgroup id="qgqbi"><div id="qgqbi"></div></optgroup></center><rp id="qgqbi"><input id="qgqbi"><blockquote id="qgqbi"><th id="qgqbi"></th></blockquote></input></rp><tbody id="qgqbi"></tbody><form id="qgqbi"><u id="qgqbi"><fieldset id="qgqbi"></fieldset></u></form><rp id="qgqbi"></rp><b id="qgqbi"><small id="qgqbi"></small></b><dd id="qgqbi"></dd><kbd id="qgqbi"></kbd><code id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"></ul></pre></code><strong id="qgqbi"></strong><cite id="qgqbi"><sub id="qgqbi"></sub></cite><object id="qgqbi"></object><dfn id="qgqbi"></dfn><pre id="qgqbi"></pre><xmp id="qgqbi"></xmp><pre id="qgqbi"></pre><sup id="qgqbi"><form id="qgqbi"><cite id="qgqbi"></cite></form></sup><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><input id="qgqbi"></input><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"></code></samp></acronym><nobr id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"><strong id="qgqbi"></strong></ul></pre></nobr><menuitem id="qgqbi"><em id="qgqbi"><wbr id="qgqbi"><mark id="qgqbi"></mark></wbr></em></menuitem><dl id="qgqbi"></dl><rp id="qgqbi"><input id="qgqbi"><div id="qgqbi"></div></input></rp><div id="qgqbi"><button id="qgqbi"><pre id="qgqbi"><meter id="qgqbi"></meter></pre></button></div><address id="qgqbi"></address><thead id="qgqbi"><abbr id="qgqbi"><sup id="qgqbi"></sup></abbr></thead><em id="qgqbi"></em><ul id="qgqbi"><listing id="qgqbi"><wbr id="qgqbi"></wbr></listing></ul><listing id="qgqbi"></listing><wbr id="qgqbi"></wbr><thead id="qgqbi"><abbr id="qgqbi"><strike id="qgqbi"></strike></abbr></thead><menuitem id="qgqbi"></menuitem><pre id="qgqbi"></pre><pre id="qgqbi"></pre><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"><span id="qgqbi"></span></bdo></delect></dl><ruby id="qgqbi"></ruby><pre id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"><i id="qgqbi"></i></tt></strike></pre><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset><cite id="qgqbi"><sub id="qgqbi"></sub></cite><optgroup id="qgqbi"></optgroup><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset></div><div id="1z8zd" class="pl_css_ganrao" style="display: none;"><label id="1z8zd"><table id="1z8zd"><pre id="1z8zd"></pre></table></label><rt id="1z8zd"><optgroup id="1z8zd"></optgroup></rt><rp id="1z8zd"><th id="1z8zd"><th id="1z8zd"></th></th></rp><b id="1z8zd"></b><bdo id="1z8zd"><tr id="1z8zd"></tr></bdo><s id="1z8zd"></s><var id="1z8zd"></var><mark id="1z8zd"></mark><form id="1z8zd"></form><video id="1z8zd"><ol id="1z8zd"></ol></video><dfn id="1z8zd"></dfn><table id="1z8zd"></table><abbr id="1z8zd"><strike id="1z8zd"></strike></abbr><nav id="1z8zd"><div id="1z8zd"><tbody id="1z8zd"></tbody></div></nav><ul id="1z8zd"><font id="1z8zd"><pre id="1z8zd"><dl id="1z8zd"></dl></pre></font></ul><u id="1z8zd"></u><sup id="1z8zd"><font id="1z8zd"><pre id="1z8zd"></pre></font></sup><center id="1z8zd"></center><nobr id="1z8zd"><pre id="1z8zd"><u id="1z8zd"></u></pre></nobr><button id="1z8zd"></button><menuitem id="1z8zd"></menuitem><optgroup id="1z8zd"><div id="1z8zd"><video id="1z8zd"></video></div></optgroup><cite id="1z8zd"></cite><meter id="1z8zd"><noframes id="1z8zd"><source id="1z8zd"><tr id="1z8zd"></tr></source></noframes></meter><tt id="1z8zd"></tt><optgroup id="1z8zd"></optgroup><mark id="1z8zd"><strong id="1z8zd"><td id="1z8zd"><li id="1z8zd"></li></td></strong></mark><track id="1z8zd"></track><abbr id="1z8zd"><strike id="1z8zd"></strike></abbr><optgroup id="1z8zd"></optgroup><sup id="1z8zd"><form id="1z8zd"><legend id="1z8zd"></legend></form></sup><div id="1z8zd"><button id="1z8zd"><object id="1z8zd"><meter id="1z8zd"></meter></object></button></div><b id="1z8zd"></b><fieldset id="1z8zd"><acronym id="1z8zd"></acronym></fieldset><pre id="1z8zd"></pre><delect id="1z8zd"></delect><dfn id="1z8zd"></dfn><sup id="1z8zd"></sup><optgroup id="1z8zd"></optgroup><ins id="1z8zd"><optgroup id="1z8zd"><center id="1z8zd"><rp id="1z8zd"></rp></center></optgroup></ins><acronym id="1z8zd"></acronym><cite id="1z8zd"><sub id="1z8zd"><tr id="1z8zd"><th id="1z8zd"></th></tr></sub></cite><tbody id="1z8zd"><ol id="1z8zd"></ol></tbody><tt id="1z8zd"></tt><small id="1z8zd"></small><acronym id="1z8zd"><samp id="1z8zd"><code id="1z8zd"><dfn id="1z8zd"></dfn></code></samp></acronym><th id="1z8zd"></th><blockquote id="1z8zd"><th id="1z8zd"></th></blockquote></div><header class="header container"><span id="8xw2ixi" class="logo"><a href="http://m.cdcfah.com/"><img src="/static/new_net_01/images/logo.png" alt="找產(chǎn)品網(wǎng)"></a></span><span id="ge3ozuw" class="tigs"> 發(fā)信息做推廣就找產(chǎn)品網(wǎng)<br />企業(yè)電商信息綜合服務(wù)平臺(tái) </span><div id="87pqmzh" class="searchbox"><div id="u3cdnkm" class="searchLt"><div id="tehebsp" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="hvnkrt2" class="clearfix searchWrap"><div id="udax2fm" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="2ch7nc7" class="container"><ul><li id = "index_index"><a href="http://m.cdcfah.com/"><span>首頁(yè)</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://m.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://m.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://m.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://m.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="vo8yasc" class="twoCol"><div id="yskmo87" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁(yè)?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/first-_wjgj/">五金、工具</a>?<a href="http://m.cdcfah.com/cp/second-wjgj_guanjianbi/">管件</a>?<a href="http://m.cdcfah.com/cp/third-guanjianbi_fengtou/">封頭</a>?連云港脫水塔封頭制作廠無(wú)錫國(guó)鑫封頭供應(yīng)</p><div id="27jvcw8" class="leftbox clearfix"><h1>連云港脫水塔封頭制作廠無(wú)錫國(guó)鑫封頭供應(yīng)</h1><div id="9q7ceqa" class="proBig"><div id="mgdfxeq" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179094785305/1092542.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="nmebi2j" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179094785305/1092542.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hboqx7u" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>連云港脫水塔封頭制作廠,封頭</p><p><span>***更新：</span>2020-12-06 05:23:34</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="peq8p8h" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫國(guó)鑫封頭制造有限公司</a></p><p><span>聯(lián)系人：</span>魏峰潔</p><p><span>郵箱: </span>239703@qq.com</p><p><span>電話: </span>13861726550</p><p><span>傳真: </span>0510_83898088</p><p><span>網(wǎng)址: </span>http://www.wxgxft.com</p><p><span>手機(jī): </span>0510-83897088</p><p><span>地址: </span>玉祁街道曙光村</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="xwy7ixe" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ixp7qif" class="box"><p><p style="text-indent:25px">封頭屬壓力容器中鍋爐部件的一種。通常是在壓力容器的兩端使用的。再有就是在管道的末端做封堵之用的一種焊接管件產(chǎn)品。有比較多種的形式。接下來(lái)我為您介紹一下山東封頭的標(biāo)準(zhǔn)。我國(guó)現(xiàn)有的封頭標(biāo)準(zhǔn)，是按結(jié)構(gòu)型式(橢圓形、碟形、錐形)，連云港脫水塔封頭制作廠、成形方式(沖壓、旋壓)的不同，而分別制訂的，這不*造成不同標(biāo)準(zhǔn)封頭質(zhì)量要求不完全一致的不合理現(xiàn)象，同時(shí)也給標(biāo)準(zhǔn)封頭的選用、標(biāo)準(zhǔn)的修訂帶來(lái)某些困難。1、以往的封頭標(biāo)。準(zhǔn)都是*與GB150《鋼制壓力容器》配套的，即只考慮了按規(guī)則設(shè)計(jì)的封頭的制造、檢驗(yàn)與驗(yàn)收要求，而我國(guó)早在1995年就完成GB150與JB4732了壓力容器基礎(chǔ)標(biāo)準(zhǔn)的雙軌制(與《鋼制壓力容器分析設(shè)計(jì)標(biāo)準(zhǔn)》)，缺少與分析設(shè)計(jì)相配套的封頭標(biāo)準(zhǔn)，不能不說(shuō)是我國(guó)壓力容器標(biāo)準(zhǔn)化工作的一大缺憾；2、GB150屬?gòu)?qiáng)制性標(biāo)準(zhǔn)，而根據(jù)GB150編制并與之配套的封頭標(biāo)準(zhǔn)卻是指導(dǎo)(推薦)性的，連云港脫水塔封頭制作廠，這顯然是不合理的，連云港脫水塔封頭制作廠，也難以保證封頭這一重要受壓元件的質(zhì)量。封頭擁有非常強(qiáng)的防腐蝕能力。連云港脫水塔封頭制作廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港脫水塔封頭制作廠,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179094785305/1092542.png"></div><p style="text-indent:25px">封頭比較多地方都有使用到，但是比較多人都不銹鋼封頭廠家如何制作封頭就不太了解，選擇封頭廠家的人員就來(lái)告訴大家。首先，在加工中需要注意，配料在冷鍛的時(shí)候就需要進(jìn)行加工，出現(xiàn)變形和硬化的情況，這種也是為了讓模具有更好的負(fù)載能力，而使用上基本上都是**度的鍛造模具，采用的都是防止磨損和粘結(jié)的硬質(zhì)潤(rùn)滑膜處理方法，這樣效果會(huì)好比較多。然后，這個(gè)需要在退火之后還能保證良好的形變能力，而且使用上而會(huì)有更好的潤(rùn)滑效果，特別是不銹鋼封頭有的會(huì)進(jìn)行磷化處理，這種在加工上對(duì)工藝的要求也就高不少，特別是比較多斷面中不能進(jìn)行潤(rùn)滑處理，也有的在這個(gè)過(guò)程中放棄潤(rùn)滑處理方式。其中溫鍛上也有一定的優(yōu)勢(shì)，可以明顯的提高鍛件的精度和質(zhì)量，而且整體上也沒(méi)有冷鍛需要那么大的成形力，溫鍛工藝上的應(yīng)用和鍛件材料上也會(huì)有明顯的改進(jìn)，不過(guò)溫鍛上不太適合的也有，就比如說(shuō)形狀非常的復(fù)雜，碳含量比較低的精密鍛件。末尾，冷鍛工藝上就可以比較好的成型，冷鍛的方式上也比較難解決，特別是后續(xù)用冷鍛的成型工藝上成本還是比較高的，比較適合一些低碳的產(chǎn)品，這種產(chǎn)品溫鍛不好處理。南京瓜瓣封頭生產(chǎn)制造廠家封頭一般是采用厚板沖壓成形，由于材料在成形過(guò)程中各部分的應(yīng)力應(yīng)變狀態(tài)不同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港脫水塔封頭制作廠,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178052369837/6358953.png"></div><p style="text-indent:25px">不銹鋼封頭組織應(yīng)力變化的結(jié)果是表層受拉應(yīng)力,另一方面鋼在熱處理過(guò)程中由于組織的變化即奧氏體向馬氏體轉(zhuǎn)變時(shí),因此容積的增大會(huì)隨同工件體積的膨脹,工件各部位先后相變，而組織應(yīng)力則是組織轉(zhuǎn)變過(guò)程中產(chǎn)生的,造成體積長(zhǎng)短不一致而發(fā)生組織應(yīng)力。內(nèi)部受壓應(yīng)力,恰好與熱應(yīng)力相反。組織應(yīng)力的大小與工件在馬氏體相變區(qū)的冷卻速度,形狀。整個(gè)冷卻過(guò)程中,熱應(yīng)力與組織應(yīng)力綜合作用的結(jié)果,就是工件中實(shí)際存在應(yīng)力。這兩種應(yīng)力綜合作用的結(jié)果是十分復(fù)雜的,受著許多因素的影響,如成分、形狀、熱處置工藝等。就其發(fā)展過(guò)程來(lái)說(shuō)只有兩種類型,即熱應(yīng)力和組織應(yīng)力,作用方向相反時(shí)二者抵消,作用方向相同時(shí)二者相互迭加。由于內(nèi)部冷卻體積收縮不能自由進(jìn)行而使表層受壓內(nèi)部受拉。即在熱應(yīng)力的作用下使工件表層受壓而內(nèi)部受拉。這種現(xiàn)象受到冷卻速度,就會(huì)導(dǎo)致體積膨脹和收縮不均而產(chǎn)生應(yīng)力,不銹鋼封頭在加熱和冷卻過(guò)程中,不銹鋼封頭由于表層和內(nèi)部的冷卻速度和時(shí)間的不一致,形成溫差。</p><p style="text-indent:25px">按封頭表面的形狀可分為凸形、錐形、平板形和組合形。凸形封頭是指外表面形狀為凸面的封頭，如半球形、橢圓形、碟形和無(wú)折邊球形封頭等。有的氣瓶采用凸面向內(nèi)的組合形底封頭，既可保證強(qiáng)度，又能滿足安全使用的需求。用途封頭是指用以封閉容器端部使其內(nèi)外介質(zhì)隔離的元件，又稱端蓋。圓筒形容器的封頭一般都是迥轉(zhuǎn)殼體。按封頭表面的形狀可分為凸形、錐形、平板形和組合形。凸形封頭是指外表面形狀為凸面的封頭，如半球形、橢圓形、碟形和無(wú)折邊球形封頭等。不銹鋼封頭就算經(jīng)過(guò)長(zhǎng)期的使用也不會(huì)輕易出現(xiàn)銹蝕的現(xiàn)象。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="連云港脫水塔封頭制作廠,封頭" src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178030524304/5216185.png"></div><p style="text-indent:25px">在封頭種類里面，有這樣一類封頭，它的任意尺寸都可以定做，無(wú)論是否有模具，都能生產(chǎn)出來(lái)，這種封頭，就是我們常說(shuō)的無(wú)直邊封頭，也叫球冠形封頭，還有一種叫法是太陽(yáng)盤封頭。無(wú)直邊封頭：其形狀就是一個(gè)圓弧底，沒(méi)有直邊，像一個(gè)鍋底一樣。這種封頭結(jié)構(gòu)非常簡(jiǎn)單，因?yàn)槿我獬叽缍伎梢远ㄗ?，局限性小，所以在比較多非標(biāo)設(shè)備中也常常受到客戶青睞。但是在定做這種封頭時(shí)，高度以及弧度非常重要，因?yàn)闆](méi)有標(biāo)準(zhǔn)的模具，所以在成型之后，會(huì)有較大的誤差。正所謂，有利就有弊，雖然任何尺寸都可以做，但是當(dāng)無(wú)直邊封頭焊接時(shí)，因?yàn)闆](méi)有直邊，所以操作起來(lái)沒(méi)有其它形狀的封頭方便，因此，在對(duì)焊之時(shí)一定要非常注意操作，較好是選擇讓技術(shù)熟練的焊接工人進(jìn)行處理。球形封頭的制造減薄量比橢圓形封頭和碟形封頭都要大一些，約15%。連云港脫水塔封頭制作廠</p><p style="text-indent:25px">封頭就是起到一個(gè)封死管道的作用。連云港脫水塔封頭制作廠</p><p style="text-indent:25px">封頭產(chǎn)品的原材料，是確保產(chǎn)品質(zhì)量的一相底子。本規(guī)范既包容了按規(guī)則規(guī)劃（與JB150配套）的封頭，也包容了按剖析規(guī)劃（與JB4732配套）的封頭，在我國(guó)初次完成了對(duì)鋼制壓力容器用封頭的一致質(zhì)量要求。大型高壓封頭出產(chǎn)廠家產(chǎn)品的規(guī)劃、原材料的選料、加工制作、出廠包裝直到售后服務(wù)都有著嚴(yán)厲的把關(guān)和記錄，嚴(yán)厲執(zhí)行ISO9000認(rèn)證的規(guī)范，多年來(lái)專注于封頭及管件的出產(chǎn),收到廣大用戶的好評(píng)與肯定,固定的協(xié)作廠家涉及到多個(gè)范疇,公司一直教育咱們不只要重視與產(chǎn)品的質(zhì)量與價(jià)格,更多的是多與客戶交流,切實(shí)的了解他們的需求,從而為咱們達(dá)到效益,我公司真誠(chéng)的歡迎您前來(lái)洽談.所出產(chǎn)的大型封頭產(chǎn)品品質(zhì)堪稱同行業(yè)中的精品，決不允許一件有疑問(wèn)的產(chǎn)品流向市場(chǎng)。容器封頭又名為容器型封頭、容器封頭即為由旋轉(zhuǎn)容器球。連云港脫水塔封頭制作廠</p><p style="text-indent:25px">無(wú)錫國(guó)鑫封頭制造有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型的公司。公司業(yè)務(wù)涵蓋封頭，不銹鋼封頭，碳鋼封頭，鋁封頭等，價(jià)格合理，品質(zhì)有保證。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。國(guó)鑫封頭秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/2286805.html</p></div></div></div></div></div><div id="z8yf8gy" class="page-right twoColRt"><div id="ga2qdq3" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3jfqnpr" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="vp8zmta" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)</p></a></div><div id="bvnfcol" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/2083415.html"><div><img src="https://tyunfile.71360.com/UploadFile/WZAJZNKJ/637332852248037109/2461316.png" alt="200l桶自動(dòng)灌裝機(jī)生產(chǎn)廠歡迎來(lái)電溫州奧基智能科技供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>200l桶自動(dòng)灌裝機(jī)生產(chǎn)廠歡迎來(lái)電溫州奧基智能科技供應(yīng)</p></a></div><div id="guqnkmo" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/1387.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/3/11/637004297269091023_cyjqc_1306937.jpg" alt="烏魯木齊市會(huì)務(wù)租車網(wǎng) 車永捷供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊市會(huì)務(wù)租車網(wǎng) 車永捷供應(yīng)</p></a></div><div id="ynkcoas" class="clear"></div></div><div id="878ahol" class="box01 box03"><h3><a href="http://m.cdcfah.com/xw/">***產(chǎn)品資訊</a></h3><ul></ul></div></div></section><div id="7rahzqn" class="page-proshow02"><p class="title">本企業(yè)其它產(chǎn)品 <span style="float:right;"><a >更多>></a></span></p><div id="xwy8rj2" class="box box-add clearfix"><ul class="box-list"><li><a href="http://m.cdcfah.com/cp/1719723.html"><div id="waskhoq" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177816365410/2698061.png" alt="徐州Q235B封頭廠商無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>徐州Q235B封頭廠商無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1719724.html"><div id="gamolce" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179742369306/9282842.png" alt="南通污水處理設(shè)備封頭無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>南通污水處理設(shè)備封頭無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1719725.html"><div id="dcurovx" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177952995583/8456246.png" alt="連云港臥式儲(chǔ)罐封頭生產(chǎn)廠家無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>連云港臥式儲(chǔ)罐封頭生產(chǎn)廠家無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1719726.html"><div id="aurjbiz" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179465046692/7774486.png" alt="徐州平底封頭生產(chǎn)廠家電話無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>徐州平底封頭生產(chǎn)廠家電話無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1721993.html"><div id="x3i37su" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179721099912/4809230.png" alt="安徽分散設(shè)備封頭企業(yè) 無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>安徽分散設(shè)備封頭企業(yè) 無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1724174.html"><div id="ysp8nub" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179614381692/2265333.png" alt="蘇州印染機(jī)械封頭廠制造無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>蘇州印染機(jī)械封頭廠制造無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1724175.html"><div id="u8e9fho" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178090075643/961728.png" alt="南京鋼包封頭無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>南京鋼包封頭無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1726469.html"><div id="7rt8btv" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179041563010/3671152.png" alt="南通雙氧水設(shè)備封頭加工廠無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>南通雙氧水設(shè)備封頭加工廠無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li></ul></div></div><div id="b8b4mjb" class="page-proshow02"><p class="title">同類產(chǎn)品推薦 <span><a href="http://m.cdcfah.com/cp/first-_wjgj/">更多>></a></span></p><div id="ujlnkro" class="box box-add clearfix"><ul class="box-list"><li><a href="http://m.cdcfah.com/cp/1789953.html"><div id="8ew72tq" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177975553890/7890057.png" alt="蘇州球冠形封頭加工無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>蘇州球冠形封頭加工無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1724174.html"><div id="bqs2a77" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179614381692/2265333.png" alt="蘇州印染機(jī)械封頭廠制造無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>蘇州印染機(jī)械封頭廠制造無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/3198607.html"><div id="j8nczby" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177986022692/3812274.png" alt="蘇州鋼包封頭廠家無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>蘇州鋼包封頭廠家無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1719726.html"><div id="3taczg3" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179465046692/7774486.png" alt="徐州平底封頭生產(chǎn)廠家電話無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>徐州平底封頭生產(chǎn)廠家電話無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1719723.html"><div id="t2os83t" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393177816365410/2698061.png" alt="徐州Q235B封頭廠商無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>徐州Q235B封頭廠商無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1726469.html"><div id="8priacj" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179041563010/3671152.png" alt="南通雙氧水設(shè)備封頭加工廠無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>南通雙氧水設(shè)備封頭加工廠無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1724175.html"><div id="7ub7j2s" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393178090075643/961728.png" alt="南京鋼包封頭無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>南京鋼包封頭無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1738753.html"><div id="nh3wdkw" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/wxgxft/637393179465046692/7774486.png" alt="南京水處理設(shè)備封頭生產(chǎn)廠家直銷無(wú)錫國(guó)鑫封頭供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>南京水處理設(shè)備封頭生產(chǎn)廠家直銷無(wú)錫國(guó)鑫封頭供應(yīng)</p></a></li></ul></div></div></section></section><footer class="footer"><div id="e8ztpbn" class="container"><p><a href="http://m.cdcfah.com/">首頁(yè)</a> | <a >企業(yè)名錄</a> | <a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a> | <a href="http://m.cdcfah.com/zx/">新聞資訊</a> | <a href="http://m.cdcfah.com/xw/">行業(yè)資訊</a> | <a href="http://m.cdcfah.com/zh/">展會(huì)信息</a> | <a href="http://m.cdcfah.com/sitemap.html">網(wǎng)站地圖</a> | </p><p><p><p>b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰??<a target="_blank">?<span style="white-space:normal;text-indent:24px;"><a target="_blank"><span style="font-family:" font-size:13.3333px;text-align:center;white-space:pre-wrap;caret-color:#1e6fff;background-color:#ffffff;"="">滬ICP備18002634號(hào)-32</span></a> </span><br /></a>??<span>??</span></p></p><p style="text-align:center;white-space:normal;"> <br /> </p> <p style="white-space:normal;text-align:center;"> <a target="_blank"></a> </p></p></div></footer> <footer> <a href="http://m.cdcfah.com/" title="六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu id="qgqbi"></menu><blockquote id="qgqbi"></blockquote><track id="qgqbi"><label id="qgqbi"></label></track><tbody id="qgqbi"></tbody><legend id="qgqbi"></legend><th id="qgqbi"><button id="qgqbi"></button></th><listing id="qgqbi"><rt id="qgqbi"></rt></listing><sup id="qgqbi"><dd id="qgqbi"><tbody id="qgqbi"></tbody></dd></sup><menu id="qgqbi"><xmp id="qgqbi"></xmp></menu><fieldset id="qgqbi"><acronym id="qgqbi"></acronym></fieldset><wbr id="qgqbi"><mark id="qgqbi"><strong id="qgqbi"></strong></mark></wbr><tbody id="qgqbi"><small id="qgqbi"></small></tbody><label id="qgqbi"><tfoot id="qgqbi"></tfoot></label><div id="qgqbi"><th id="qgqbi"><object id="qgqbi"></object></th></div><listing id="qgqbi"></listing><source id="qgqbi"><ins id="qgqbi"></ins></source><noframes id="qgqbi"></noframes><noscript id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"></tt></strike></noscript><strike id="qgqbi"><rp id="qgqbi"></rp></strike><dl id="qgqbi"></dl><th id="qgqbi"></th><acronym id="qgqbi"></acronym><center id="qgqbi"><input id="qgqbi"><div id="qgqbi"><th id="qgqbi"></th></div></input></center><label id="qgqbi"></label><tr id="qgqbi"><label id="qgqbi"><center id="qgqbi"></center></label></tr><menuitem id="qgqbi"><em id="qgqbi"><legend id="qgqbi"></legend></em></menuitem><pre id="qgqbi"></pre><fieldset id="qgqbi"><address id="qgqbi"><abbr id="qgqbi"><dl id="qgqbi"></dl></abbr></address></fieldset><sup id="qgqbi"><form id="qgqbi"></form></sup><form id="qgqbi"></form> <form id="qgqbi"></form><center id="qgqbi"><rp id="qgqbi"></rp></center><code id="qgqbi"></code><option id="qgqbi"><i id="qgqbi"><tr id="qgqbi"></tr></i></option><address id="qgqbi"></address><pre id="qgqbi"></pre><wbr id="qgqbi"></wbr><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"></bdo></delect></dl><table id="qgqbi"><p id="qgqbi"></p></table><label id="qgqbi"><xmp id="qgqbi"><noscript id="qgqbi"><dl id="qgqbi"></dl></noscript></xmp></label><cite id="qgqbi"></cite><acronym id="qgqbi"><object id="qgqbi"><big id="qgqbi"></big></object></acronym><rp id="qgqbi"></rp><tt id="qgqbi"></tt><output id="qgqbi"></output><table id="qgqbi"><p id="qgqbi"><ruby id="qgqbi"></ruby></p></table><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><u id="qgqbi"></u><bdo id="qgqbi"><tr id="qgqbi"><dfn id="qgqbi"></dfn></tr></bdo><strike id="qgqbi"><font id="qgqbi"></font></strike><s id="qgqbi"></s><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"><pre id="qgqbi"></pre></code></samp></acronym><cite id="qgqbi"></cite><form id="qgqbi"><dl id="qgqbi"><pre id="qgqbi"><label id="qgqbi"></label></pre></dl></form><center id="qgqbi"><rp id="qgqbi"></rp></center><font id="qgqbi"></font><menu id="qgqbi"></menu><small id="qgqbi"><strong id="qgqbi"><sup id="qgqbi"><form id="qgqbi"></form></sup></strong></small><label id="qgqbi"><tfoot id="qgqbi"><em id="qgqbi"></em></tfoot></label><optgroup id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></optgroup><label id="qgqbi"></label><meter id="qgqbi"><noframes id="qgqbi"><i id="qgqbi"><ins id="qgqbi"></ins></i></noframes></meter><kbd id="qgqbi"></kbd><b id="qgqbi"></b><dl id="qgqbi"><delect id="qgqbi"><th id="qgqbi"><span id="qgqbi"></span></th></delect></dl><font id="qgqbi"></font><small id="qgqbi"></small><mark id="qgqbi"></mark><del id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></del><dd id="qgqbi"><ruby id="qgqbi"><menu id="qgqbi"></menu></ruby></dd><th id="qgqbi"><em id="qgqbi"></em></th><abbr id="qgqbi"></abbr><span id="qgqbi"><kbd id="qgqbi"><dfn id="qgqbi"><sub id="qgqbi"></sub></dfn></kbd></span><ins id="qgqbi"></ins><s id="qgqbi"><progress id="qgqbi"></progress></s><th id="qgqbi"></th><bdo id="qgqbi"></bdo><blockquote id="qgqbi"></blockquote><b id="qgqbi"></b><nav id="qgqbi"><div id="qgqbi"></div></nav> <meter id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></meter><tfoot id="qgqbi"></tfoot><big id="qgqbi"><pre id="qgqbi"><s id="qgqbi"></s></pre></big><small id="qgqbi"></small><table id="qgqbi"><td id="qgqbi"><sup id="qgqbi"></sup></td></table><form id="qgqbi"><tr id="qgqbi"></tr></form><tr id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></tr><ul id="qgqbi"></ul><center id="qgqbi"><optgroup id="qgqbi"><div id="qgqbi"></div></optgroup></center><rp id="qgqbi"><input id="qgqbi"><blockquote id="qgqbi"><th id="qgqbi"></th></blockquote></input></rp><tbody id="qgqbi"></tbody><form id="qgqbi"><u id="qgqbi"><fieldset id="qgqbi"></fieldset></u></form><rp id="qgqbi"></rp><b id="qgqbi"><small id="qgqbi"></small></b><dd id="qgqbi"></dd><kbd id="qgqbi"></kbd><code id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"></ul></pre></code><strong id="qgqbi"></strong><cite id="qgqbi"><sub id="qgqbi"></sub></cite><object id="qgqbi"></object><dfn id="qgqbi"></dfn><pre id="qgqbi"></pre><xmp id="qgqbi"></xmp><pre id="qgqbi"></pre><sup id="qgqbi"><form id="qgqbi"><cite id="qgqbi"></cite></form></sup><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><input id="qgqbi"></input><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"></code></samp></acronym><nobr id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"><strong id="qgqbi"></strong></ul></pre></nobr><menuitem id="qgqbi"><em id="qgqbi"><wbr id="qgqbi"><mark id="qgqbi"></mark></wbr></em></menuitem><dl id="qgqbi"></dl><rp id="qgqbi"><input id="qgqbi"><div id="qgqbi"></div></input></rp><div id="qgqbi"><button id="qgqbi"><pre id="qgqbi"><meter id="qgqbi"></meter></pre></button></div><address id="qgqbi"></address><thead id="qgqbi"><abbr id="qgqbi"><sup id="qgqbi"></sup></abbr></thead><em id="qgqbi"></em><ul id="qgqbi"><listing id="qgqbi"><wbr id="qgqbi"></wbr></listing></ul><listing id="qgqbi"></listing><wbr id="qgqbi"></wbr><thead id="qgqbi"><abbr id="qgqbi"><strike id="qgqbi"></strike></abbr></thead><menuitem id="qgqbi"></menuitem><pre id="qgqbi"></pre><pre id="qgqbi"></pre><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"><span id="qgqbi"></span></bdo></delect></dl><ruby id="qgqbi"></ruby><pre id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"><i id="qgqbi"></i></tt></strike></pre><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset><cite id="qgqbi"><sub id="qgqbi"></sub></cite><optgroup id="qgqbi"></optgroup><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset></div> <div class="friend-links"> <a href="http://www.bjcldhs.com">亚洲另类在线欧美制服</a> <a href="http://www.ahlxmyzz.com">色七七在线综合视频</a> <a href="http://www.junzishuo.com">亚洲中文字幕久久精品91</a> <a href="http://www.yhzblp.com">国产精品自在在线免费</a> <a href="http://www.zwlkg.com">久久国产乱子伦精品免费午夜</a> </div> </footer> <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body><div id="5ai82" class="pl_css_ganrao" style="display: none;"><ruby id="5ai82"></ruby><ins id="5ai82"><label id="5ai82"><thead id="5ai82"></thead></label></ins><sup id="5ai82"><optgroup id="5ai82"><legend id="5ai82"></legend></optgroup></sup><thead id="5ai82"></thead><form id="5ai82"><tr id="5ai82"></tr></form><big id="5ai82"><track id="5ai82"></track></big><tr id="5ai82"></tr><big id="5ai82"><track id="5ai82"><pre id="5ai82"><delect id="5ai82"></delect></pre></track></big><label id="5ai82"><progress id="5ai82"><listing id="5ai82"></listing></progress></label><abbr id="5ai82"><strike id="5ai82"></strike></abbr><label id="5ai82"><em id="5ai82"></em></label><tbody id="5ai82"><tt id="5ai82"><i id="5ai82"><tr id="5ai82"></tr></i></tt></tbody><optgroup id="5ai82"></optgroup><progress id="5ai82"></progress><th id="5ai82"><em id="5ai82"></em></th><acronym id="5ai82"><b id="5ai82"><code id="5ai82"><dfn id="5ai82"></dfn></code></b></acronym><acronym id="5ai82"><b id="5ai82"><code id="5ai82"></code></b></acronym><ul id="5ai82"><listing id="5ai82"></listing></ul><tbody id="5ai82"></tbody><object id="5ai82"></object><big id="5ai82"></big><rp id="5ai82"><dl id="5ai82"><tt id="5ai82"><bdo id="5ai82"></bdo></tt></dl></rp><dfn id="5ai82"><td id="5ai82"><ins id="5ai82"><label id="5ai82"></label></ins></td></dfn><table id="5ai82"><p id="5ai82"></p></table><menuitem id="5ai82"></menuitem><input id="5ai82"></input><samp id="5ai82"></samp><nobr id="5ai82"></nobr><listing id="5ai82"><rt id="5ai82"></rt></listing><noframes id="5ai82"></noframes><tr id="5ai82"><b id="5ai82"><code id="5ai82"><dfn id="5ai82"></dfn></code></b></tr><tr id="5ai82"><b id="5ai82"></b></tr><ins id="5ai82"><label id="5ai82"><thead id="5ai82"></thead></label></ins><ins id="5ai82"></ins><dfn id="5ai82"></dfn><small id="5ai82"><strong id="5ai82"><sup id="5ai82"><form id="5ai82"></form></sup></strong></small><tt id="5ai82"><tbody id="5ai82"><menuitem id="5ai82"></menuitem></tbody></tt><form id="5ai82"><ul id="5ai82"><fieldset id="5ai82"><address id="5ai82"></address></fieldset></ul></form><legend id="5ai82"></legend><center id="5ai82"><rp id="5ai82"><strike id="5ai82"></strike></rp></center><sup id="5ai82"></sup><strong id="5ai82"></strong><u id="5ai82"></u><i id="5ai82"></i><em id="5ai82"><style id="5ai82"><mark id="5ai82"><noframes id="5ai82"></noframes></mark></style></em><del id="5ai82"><cite id="5ai82"></cite></del><code id="5ai82"><pre id="5ai82"><ul id="5ai82"></ul></pre></code><strong id="5ai82"></strong><big id="5ai82"><pre id="5ai82"></pre></big><mark id="5ai82"></mark></div></html>