1. <table id="wlqdz"></table><thead id="wlqdz"></thead>
    2. <del id="wlqdz"><ul id="wlqdz"><kbd id="wlqdz"></kbd></ul></del>
        <em id="wlqdz"></em>
          精品人妻少妇一区二区,瑜伽裤国产一区二区三区,欧美熟妇丰满肥白大屁股免费视频,国模冰莲大胆自慰难受,精品久久久久久综合日本,最新精品国偷自产在线下载,久久婷婷五月综合色欧美,香蕉人妻av久久久久天天
          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: 日韩免费视频一一二区| 一区二区偷拍美女撒尿视频| 国产V片在线播放免费无码| 辉南县| 张家川| 日韩大片在线永久免费观看网站| 久久99精品久久久久久秒播| 国产精品区一区第一页| 五月婷婷激情六月开心| 色噜噜狠狠色综合av| 亚洲一区二区三区av天堂| 国产午夜福利不卡在线观看| 亚洲精品国偷自产在线99人热| 天天躁狠狠躁狠狠躁夜夜躁| 九九热在线精品视频首页| 在线看片免费人成视频久网| 黄色亚洲一区二区三区四区| 亚洲精品国偷拍自产在线观看| 少妇中文字幕乱码亚洲影视| 国产自在自线午夜精品| 久久精品国产88精品久久| 中文字幕一区二区三区精华液| 国产老熟女一区二区三区| 激情综合网激情国产av| 免费观看成人稀缺视频在线播放 | 玩弄少妇高潮ⅹxxxyw| 国产av无码国产av毛片 | 余江县| 丰满少妇被猛男猛烈进入久久| 米奇亚洲国产精品思久久| 国产激情视频一区二区三区| 综合激情网一区二区三区| 中文无码av在线亚洲电影| 国精产品一区一区三区有限在线| 峡江县| 逊克县| 成人免费无码大片a毛片软件| 亚洲中文欧美在线视频| 一二三四免费中文字幕| 做暖暖视频在线看片免费| 国产成人不卡无码免费视频|