• <pre id="vnc4h"><samp id="vnc4h"><legend id="vnc4h"></legend></samp></pre><th id="vnc4h"><samp id="vnc4h"><legend id="vnc4h"></legend></samp></th>
    <dfn id="vnc4h"></dfn>

    <th id="vnc4h"><pre id="vnc4h"><legend id="vnc4h"></legend></pre></th>

    久久伊人777777|性爱高潮视频|97超碰福利|日本久久久久|三级无码毛片|毛片午夜网|特级欧美AAAAAA|日韩av怎么搜|免费AV播放|国产在线超碰

    久久伊人777777|性爱高潮视频|97超碰福利|日本久久久久|三级无码毛片|毛片午夜网|特级欧美AAAAAA|日韩av怎么搜|免费AV播放|国产在线超碰

    久久伊人777777|性爱高潮视频|97超碰福利|日本久久久久|三级无码毛片|毛片午夜网|特级欧美AAAAAA|日韩av怎么搜|免费AV播放|国产在线超碰

    Service Hotline
    086-577-86923687
    Current Location:Home - News - Industry News
    Head types and production methods
    Release Time:2011-11-23  Views :
    Category Head
     
    Head Material can be divided into: plastic, stainless steel seal top, head products are mostly male, cone shell, adjustable sections, flat lid and tightening the mouth. Wherein the convex head (sometimes referred to by the shape classification) comprising: a hemispherical head, oval head, dished head and a spherical cap-shaped head.
    Head of manufacturing methods
    a) Small head: the overall shape;
    b) large and medium-sized head: first splicing molding - the most widely used, mainly for the requirements of the standard in terms of it;
    c) large head: because of factors such as transport and open file request to split forming, after welding together.
    Key Words : 封頭
    Products
    Elliptical head
    Elliptical head
    Butterfly head
    Butterfly head
    Spherical head spin edge
    Spherical head spin edge
    Flat Head
    Flat Head
    Spherical head
    Spherical head
    Bow bottom head
    Bow bottom head
    Conical head
    Conical head
    Spherical cap shaped head
    Spherical cap shaped head
    Insulation panel
    Insulation panel
    Expansion Joints
    Expansion Joints
    Jacket (cylinder) rotation side
    Jacket (cylinder) rotation side
    Manhole flange
    Manhole flange
    NAVIGATION
    Wenzhou Shangshang Metal Products Co., Ltd.
    Add : 208,Zhanhong Road,Dushan,Longwan CentralIndustry,Wenzhou
    Tel : 086-577-86923687 85981288  Fax : 086-577-86913687
    All Rights Reserved © 2016 Wenzhou Shangshang Metal Products Co., Ltd    Zhejiang ICP No. 08,005,782
    • Follow Us

      Follow Us

    久久伊人777777|性爱高潮视频|97超碰福利|日本久久久久|三级无码毛片|毛片午夜网|特级欧美AAAAAA

    
    
  • <pre id="vnc4h"><samp id="vnc4h"><legend id="vnc4h"></legend></samp></pre><th id="vnc4h"><samp id="vnc4h"><legend id="vnc4h"></legend></samp></th>
    <dfn id="vnc4h"></dfn>

    <th id="vnc4h"><pre id="vnc4h"><legend id="vnc4h"></legend></pre></th>

    97人人藻| 岛国无码成人91| 91区看片| 一级片欧美| 久久91东京热| 超碰好屌| 91视频人人| 97人人妻| A片无线看| 超碰人人操人人干人人摸| 亚洲日韩首页| 玖操97| 夫妇制服丝袜在线| 久久av三级片| 福利网址熟女导航| AV自拍| 亚洲91日本| AV黄色在线免费| AV永久网址| 成人黄色三级片毛片| 91九草在线视频| 亚洲无码AV色情电影| 日韩色色网| 中韩一级a片| 口交免费视频网站| 日韩色图无码AV一区| 亚洲激情综合| 中国少妇一级a片| 91性爱| 丁香五月av| 国产精品777| 绿帽无码AV| 中文字幕av在线观看| 另类黄色小说| 亚洲AVaV在线网| 一级黄色视频网站| 亚洲成人AV在线观看| 一级韩免费毛片| AV91在线| 亚洲一级特黄| 日韩性爱无码|