<thead id="0cgtm"></thead>
          <p id="0cgtm"><li id="0cgtm"></li></p>
          <cite id="0cgtm"></cite>

            国产毛片三区二区一区,青青国产成人免费精品视频,中文字幕久久精品人妻,无码国产精品一区二区免费97,国产精品女丝袜白丝袜,日韩精品诱惑一区二区,亚洲欧洲一区二区三区,日韩欧美亚洲国产精久久久
            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: 玛纳斯县| 亚洲一区二区国产精品| 欧美a视频在线观看| 国产精品无码久久久一区蜜臀| 国产xxxx69免费大片| 久久这里都是精品国产| 久久久久亚洲Av片无码一区| 免费在线观看一区二区视频| 日韩av中文字幕有码| 国产综合成色在线视频| 日本一区二区精品视频| 在线观看国产一区亚洲bd| 精品无码国产AV一区二区三区| 久久国产精品范冰啊| 国产添下面视频全过程教程| 五月激情狠狠开心五月| 亚洲制服丝袜第一页| 人妻少妇久久精品一区二区| 医院人妻闷声隔着帘子被中出 | 国产乱对白刺激视频| 色WWW永久免费视频| 国产成人精品午夜在线播放| 亚洲AⅤ无码国精品中文字慕| 99热这里只有精品2| 午夜无码A级毛片免费视频| 国产成人色污在线观看| 日日摸日日碰人妻无码老牲| 精品噜噜噜噜久久久久久久久 | 九九久久99综合一区二区| 日韩免费高清视频网站| 国产精品原创av片国产日韩| 欧美人与禽交片mp4| 一区二区三区在线蜜桃| 好吊色妇女免费视频免费| 国产精品极品自拍视频| 图片区偷拍区小说区五月| 日日摸夜夜添夜夜添无| 波多吉野一区二区三区av| 四虎国产精品永久地址99| 黄色段片一区二区三区| 亚洲毛片ΑV无线播放一区|