亚洲αv在线精品糸列-在厨房拨开内裤进入毛片-亚洲精品v天堂中文字幕-我把护士日出水了视频

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： 人妻内射一区二区在线视频| 亚洲精品乱码久久久久久蜜桃不卡| 成人天堂资源www在线| 精品国产免费一区二区三区香蕉| h漫全彩纯肉无码网站| av 日韩 人妻 黑人 综合 无码| 日韩精品无码免费一区二区三区| 久久久久成人精品无码中文字幕 | 日韩人妻无码精品专区| 牛鞭伸入女人下身的真视频| 久久av无码αv高潮αv喷吹| 欧美日韩国产成人高清视频| 精品无人乱码一区二区三区| 亚洲精品美女久久7777777| 久久国产精品二国产精品| 欧美人与性动交ccoo| 欧美性xxxx狂欢老少配| 无码人妻精品一区二| 国产亚洲欧美日韩俺去了| 亚洲爆乳精品无码一区二区| 成人网站免费大全日韩国产| 免费国精产品—品二品国精| 公交车大龟廷进我身体里视频| 狠狠色噜噜狠狠狠狠av| 看曰本女人大战黑人视频| 欧美激情一区二区| 国产全肉乱妇杂乱视频| 欧美日韩中文国产一区| 人妻少妇精品视频一区二区三区| 日韩av无码社区一区二区三区| 国产仑乱无码内谢| 自偷自拍亚洲综合精品第一页 | 欧美牲交a欧美牲交aⅴ免费| 真实的国产乱xxxx在线| 亚洲熟妇无码乱子av电影| 99久久精品日本一区二区免费 | 久青草影院在线观看国产| 精品国精品国产自在久国产应用 | 粉色午夜视频| 欧美日韩人妻精品一区二区在线| 久久久久人妻一区精品性色av|