1. <center id="tasu1"></center>

  2. <meter id="tasu1"><samp id="tasu1"></samp></meter>
    <form id="tasu1"></form>
    <tt id="tasu1"><option id="tasu1"><table id="tasu1"></table></option></tt>
    1. <var id="tasu1"><fieldset id="tasu1"></fieldset></var>
      美女福利视频一区二区,精东A片成人影视,色福利网,中文字幕2019年最好看电视剧,久久凹凸视频,亚洲美女视频在线,性交大片,尤物一区
      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

      主站蜘蛛池模板: 日本妇乱子伦视频| 中山市| 久热久热中文字幕综合激情| 边添小泬边狠狠躁视频| 欧美a级欧美1级a大片| 性色欲情网站iwww九文堂| 婷婷亚洲五月花视频| 日韩精品亚洲专区在线影视| 青草青草久热精品视频国产4| 黑人无码av| 亚洲视频在线观看一区二区三| 无码纯肉视频在线观看 | 狠狠操夜夜操| 无码播放一区二区三区| 亚洲偷自拍另类图片二区| 亚洲五月综合缴情综合久久| 亚洲国产日韩精品乱码教育| 无码人妻毛片丰满熟妇精品区| 中文字幕av在线| 少妇又色又紧又爽又刺激视频| 99re热精品视频中文字幕不卡| 亚洲av无码成人网站www| 一起草AV| 亚洲欧美综合区自拍另类| 欧美国产精品一级二级三级| 亚洲妇女黄色三级视频| 国产情侣真实露脸在线| 久久精品国产精品亚洲蜜月| 成人深夜福利| 爆乳熟妇一区二区三区霸乳| 久久亚洲国产成人影院| 国产精品17p| 国产精品理论片在线观看| 免费国产拍久久受拍久久| 亚洲日韩一区精品射精| 少妇的逼逼| 免费看男女做好爽好硬视频| 毛片无码免费无码播放| 免费的污网站| 无码少妇高潮浪潮av久久| 人妻中文字幕精品一页|