亚洲第一成人网站在线播放,亚洲综合色女狼婷婷,精品美女视频在线免费看,在线播放小视频一区二区三区,国产又爽又黄又嫩又猛又粗视频,久久久久国色aV免费软件,亚洲中文字幕a级黄色

Service Hotline

086-577-86923687

Current Location:Home - News - Products Knowledge

Comparison Process head cold and hot processing

Release Time:2011-10-26 Views :

Processing head is generally divided into cold and hot working are two, compare the following three aspects of the two paper processing head were:

A, head cold material deterioration does not occur, especially suitable for processing stainless steel head;

Thermal processing material deterioration will occur, resulting in decreased corrosion resistance of stainless steel head, stainless steel head is not suitable for processing.

B, cold will not change the size of the contraction caused by cooling, regular shape, size, accuracy and consistency;

Hot forming mold can cause thermal expansion and contraction of the cooling head, the size difference is difficult to control and consistency.

C, to maintain the surface after head cold forming smooth surface of the original material, beautiful appearance.

Surface oxide formed after thermal processing head of serious and difficult to remove.

Key Words : 不銹鋼封頭

News Up Next

Products

: Elliptical head

: Butterfly head

: Spherical head spin edge

: Flat Head

: Spherical head

: Bow bottom head

: Conical head

: Spherical cap shaped head

: Insulation panel

: Expansion Joints

: Jacket (cylinder) rotation side

: Manhole flange

Home Head Series Products News Parameter Company Profile Contact Us Company Culture

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

昌宁县| 高邑县| 黄大仙区| 苗栗市| 威远县| 利津县| 明溪县| 彰化县| 建湖县| 龙山县| 东丰县| 新巴尔虎左旗| 奉贤区| 博罗县| 临猗县| 姜堰市| 信宜市| 湟中县| 营山县| 旅游| 龙胜| 新宁县| 新余市| 铁岭县| 靖边县| 怀仁县| 襄垣县| 将乐县| 宣威市| 韶山市| 霸州市| 普兰店市| 鞍山市| 登封市| 洪雅县| 昌宁县| 雷山县| 永胜县| 隆安县| 孟州市| 泸西县|