The submerged arc welding spiral steel pipe uses continuous welding wire as the electrode and fi...
Steel bending pipe processing and forming process: 1. Die forging. For socket welding and thre...
Spiral steel pipes are mainly used as fluid pipes and piling pipes. If the steel pipes are used ...
When the spiral steel pipe is blocked, it will not only affect our use, but also have a certain ...
Large-diameter straight seam submerged arc steel pipes are mainly responsible for pipeline trans...
Because spiral steel pipes are stacked outdoors, and most of them are buried in the ground when ...
1. Metallurgical properties of materials Longitudinal submerged arc welded pipes are produced from...
Fundamentally speaking, the measures to prevent the formation of pores in the weld are to limit the ...
The construction quality of steel pipe piles is related to the stability of buildings, so some detai...
Fundamentally speaking, the measures to prevent the formation of pores in the weld are to limit the ...
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