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: 日韩高清亚洲日韩精品一区 | 国产精品毛片大码女人| 欧美亚洲国产精品久久| 久久人妻少妇嫩草av| 国产国语老龄妇女a片| 久久精品国产中国久久| 欧美噜噜久久久xxx| 国产精品无码久久久久| 在厨房拨开内裤进入在线视频| 国产欧美va欧美va香蕉在| 精品无人区卡一卡二卡三乱码| 国产白嫩护士被弄高潮| 高清欧美性猛交xxxx黑人猛交 | 亚洲熟妇久久国产精品| 亚洲 欧美 综合 在线 精品| 亚洲av无码一区二区三区18| 欧美性猛交xxxx黑人| 国产精品久久久久久久久久免费看| 在线观看国产丝袜控网站| 亚洲精品国产品国语在线| 日本www一区二区三区| 精品国产一区二区三区av孞弋| 激情亚洲图片激情亚洲小说| 国产不卡一区两区三区| 加勒比色综合久久久久久久久| 玩弄少妇人妻| 日韩精品无码一区二区| 国产精品麻花传媒二三区别| 亚洲图片一区在线观看| 日本一区视频免费观看| 韩国精品久久久久久无码| 日本xxx在线观看免费播放| 久久精品动漫一区二区三区| 人人添人人澡人人澡人人人人 | 少妇高清一区二区免费看| 久久久97精品一区蜜桃| 99久久成人国产精品免费| 国产精品国产三级国产普通话 | 无码人妻丰满熟妇奶水区码| 欧洲女人牲交视频免费| www国产亚洲精品久久麻豆|