亚洲学生妹高清av-国产卡一卡二卡三-免费观看成人毛片a片-久久久国产精品无码免费专区-国产超碰人人爽人人做人人添

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： 老色鬼在线精品视频在线观看| 久久国产乱子伦免费精品| 免费观看亚洲人成网站| 粗大猛烈进出高潮视频二| 国产精选污视频在线观看| 久久人妻夜夜做天天爽| 欧美丰满少妇xxxx性| 亚洲男人的天堂av手机在线观看| 欧美啪啪| 欧美成人精品三级一二三在线观看| 欧美freesex黑人又粗又大| 亚洲成a人无码| 欧美最猛性xxxxx免费| 精品一区二区三区无码免费直播 | 97免费公开在线视频| 无码国产精品一区二区高潮| 人妻丰满熟妇av无码区| 亚洲男同gv在线观看| 成人午夜精品无码区| 国产熟妇搡bbbb搡bbbb搡| ā片在线观看免费观看| 熟睡人妻被讨厌的公侵犯| 久久久99精品免费观看| 国内自拍视频一区二区三区| 亚洲自偷精品视频自拍| 国产日韩精品欧美一区喷水| 无码乱人伦一区二区亚洲| 国产亚洲精品aaaa片小说| 性无码免费一区二区三区在线| 99视频精品全部免费 在线| 伦伦影院午夜理论片| 狂野欧美激情性xxxx| 后入内射欧美99二区视频| 1000部夫妻午夜免费| 亚洲熟伦熟女新五十路熟妇| 狼人无码精华av午夜精品| 国产在线视频一区二区三区| 动漫人妻h无码中文字幕| 久久精品国内一区二区三区| 久久草草亚洲蜜桃臀| 国产精品区一区第一页|