To prolong the service life of the spiral steel pipe , the first thing you should think about is ...
The development of seamless steel pipes focuses on energy saving and emission reduction technology. ...
1) Work before molding The raw materials are strip coil, welding wire, and flux. They must undergo...
1. The stainless steel elbow is made of thick-walled steel pipe , and the wall thickness changes ...
Thick-walled steel pipes refer to steel pipes whose outer diameter and wall thickness ratio is l...
1. Preliminary rounding stage: the fan-shaped blocks are opened until all the fan-shaped blocks are ...
Stainless steel pipe is a kind of hollow long steel, which is widely used as a pipeline for conv...
The double wire automatic welding of straight seam steel pipe is a welding technology developed ...
(1) When the cooling is completed, that is, when the temperatures of the surface layer and the core ...
Simply put, the process of heating the steel and controlling it above the recrystallization temperat...
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