Steel bending pipe processing and forming process: 1. Die forging. For socket welding and thre...
When the spiral steel pipe is blocked, it will not only affect our use, but also have a certain ...
Because spiral steel pipes are stacked outdoors, and most of them are buried in the ground when ...
Fundamentally speaking, the measures to prevent the formation of pores in the weld are to limit the ...
Fundamentally speaking, the measures to prevent the formation of pores in the weld are to limit the ...
Steel pipe inner wall anti-corrosion is an anti-corrosion device for the inner wall of the steel...
The main business is DIN-2391 standard hydraulic seamless steel pipe (GB3639-83), which has been...
The surface quality of steel pipe: requirements for smooth surface a. Dangerous defects: cracks,...
1. The power supply with vertical external characteristics is adopted, and the positive polarity is ...
1. Tees, crosses, press-formed reducers, and pipe caps formed by the direct cutting of bars of all m...
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