Threeway Steel-Seamless Steel Pipe, ERW Steel Pipe, LSAW Steel Pipe, SSAW Steel Pipe
Contact Us
Seamless Steel Pipe,ERW Steel Pipe,LSAW Steel Pipe,SSAW Steel Pipe,

Threeway Steel Co., Ltd

E-mail: sales@srtsteelpipe.com

Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116

Phone:0086-731-8873-9521  

Home - NewsNews Center
Straight seam steel pipe continuous rolling process

Straight seam steel pipe continuous rolling process

Keywords :Straight seam steel pipe continuous rolling process        Update : 2022-04-26        View(s) : 1186

Straight seam steel pipe continuous rolling process, continuous rolling process is used in the continuous rolling and diameter reduction process of steel pipes. Continuous steel pipe rolling is a process in which steel pipes and mandrels move together in multiple stands. The deformation and move...

How to deal with the natural gas pipeline-interface

How to deal with the natural gas pipeline-interface

Keywords :How to deal with the natural gas pipeline-interface        Update : 2022-04-25        View(s) : 1201

(1) Gas pipeline preparation before construction ①Although the melting point of molten lead refined lead is 327℃, due to the operation in the open air, there is a certain distance between the molten lead and the pouring interface. Considering the temperature drop of molten lead during transpor...

Why can 3pe anti-corrosion pipes be anti-corrosion

Why can 3pe anti-corrosion pipes be anti-corrosion

Keywords :Why can 3pe anti-corrosion pipes be anti-corrosion        Update : 2022-04-24        View(s) : 1179

3PE anti-corrosion pipe means that it has three layers of anti-corrosion PE steel pipes. 3pe anti-corrosion pipeline is widely used today, a kind of steel pipeline with good anti-corrosion. What anti-corrosion materials are the structure of 3pe anti-corrosion pipes composed of? What are the pr...

The difference between high frequency welded steel pipe and straight-seam welded steel pipe

The difference between high frequency welded steel pipe and straight-seam welded steel pipe

Keywords :The difference between high frequency welded steel pipe and straight-seam welded steel pipe        Update : 2022-04-22        View(s) : 1300

1. Different nature A. High-frequency welded steel pipe : After the hot-rolled coil is formed by the forming machine, the skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the tube blank, and pressure welding is performed under the action of the ex...

How deep is the natural gas pipeline buried

How deep is the natural gas pipeline buried

Keywords :How deep is the natural gas pipeline buried        Update : 2022-04-21        View(s) : 1260

The minimum covering soil thickness for the burial of underground gas pipelines shall meet the following requirements: When buried under the roadway, it shall not be less than 0.9m; When buried under non-vehicle roads (including sidewalks), it shall not be less than 0.6m; When buried in...

Page(s):  1 ... 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 ... 480