亚洲日韩久久综合中文字幕-一级片免费观看-亚洲欧美日韩在线不卡-国产在线无码制服丝袜无码-我要看欧美一级毛片-亚洲日韩中文字幕无码一区

Hello! Welcome to Wenzhou Longsheng Stainless Steel Products Co., Ltd.

Common Problem
Current Location:Home > News > Common Problem

What is the production line of stainless steel tube?

Source:http://www.nhrscx.cn/ Posted on:2016-12-06 0:19:27

不銹鋼彎頭的編號和表示辦法

Stainless steel tube: from the tube (plate, belt) directly into the shape of welded pipe, the main process for the strip forming, welding, sizing. Features: less consumption processes, engineering process is simple, product consumption cycle is short, slightly lower product accuracy.

  Second stainless steel tube production methods: from the tube (plate, with) the first direct welding forming a certain size of pipe, and then after cold-drawn or cold rolled into waste pipe, known as DOM welded steel pipe. The main process is forming, welding, sizing, cold or cold drawing (with mandrel or without mandrel), or continuous drawing (ie, welding - cold drawn with the consumption line). Features: the consumption process dispersion, process and consumption cycle is long, accounting for the air product size, product precision, surface brightness, mechanical properties and microstructure state.

  The third type of stainless steel production methods: from the tube (plate, with) the first direct welding forming a certain size pipe, into the continuous reducer to reduce the diameter of the tube into a waste tube. The main process for forming, welding, continuous cold reducing diameter. Features: Compact consumption process, simple process, high efficiency unit consumption, the scope of change quickly, for consumption of small diameter and thin-walled welded steel pipe



CONTACT US
  • TEL:0577-86999677
  • FAX:0577-86823321
  • ADD:No.3227 yongqiang road, longwan district, wenzhou city, zhejiang province.
All Rights Reserved 2018 Wenzhou?Longsheng?Stainless?Steel?Co.,Ltd Technical support: Yunding Technology
主站蜘蛛池模板: 国产亚洲欧美日韩一区图片| 国产av亚洲第一女人av| 国产成人无码a区在线观看导航| 2020国产欧洲精品网站| 亚洲va中文字幕无码一二三区 | 精品久久久久久中文字幕大豆网| 黑人巨茎大战俄罗斯美女| 国产成人av在线影院| 日日噜噜夜夜狠狠久久无码区| 一本大道av伊人久久综合| 东京热无码人妻一区二区av| 18禁黄无遮挡网站| 色综合久久久久无码专区| 久久人人97超碰a片精品| 人与嘼交av免费| 久久中文骚妇内射| 人妻丰满av无码中文字幕| 五月丁香国产在线视频| 久久久精品久久久久久96| 波多野结衣美乳人妻hd电影欧美| 亚洲一区二区三区在线免费播放| 午夜亚洲国产理论片亚洲2020| 秋霞鲁丝av一区二区三区| 欧美日韩国产图片区一区| 精品久久久久字幕一区| 动漫精品视频一区二区三区 | 自拍视频在线观看一区二区| 亚洲欧美日韩国产成人一区| 肉大榛一进一出免费视频 | 日本少妇肉体裸交xxx| 麻豆第一区mv免费观看网站| 免费观看又色又爽又湿的视频| 色老头在线一区二区三区| 国产精品无码人妻一区二区在线| 亚洲孕妇熟女一区二区| 色婷婷亚洲一区二区| 精品国产一区二区av片| 少妇的肉体aa片免费| 亚洲色大成网站www国产| 无码国产69精品久久久久网站| 国产乱子伦一区二区三区|