1. What is the heat treatment process of large-diameter steel pipes ? (1) During the heat treat...
Welded steel pipes can be classified into different types and types according to different class...
There is a significant difference between straight seam steel pipe and steel pipe. I believe man...
After a series of treatments such as forming, welding and cooling, the spiral steel pipe still n...
The causes of surface defects of seamless steel pipes are intricate and complicated. There are h...
1 Judging from the surface, that is, in visual inspection. Visual inspection of welded joints is a s...
1. Fake and inferior thick-walled steel pipes are prone to folding. Folds are various fold lines...
Anti-corrosion steel pipe is a common steel pipe. In order to slow down and prevent the steel pi...
There are 3 categories of trenchless repair technologies for steel pipelines (including more tha...
The application of large-diameter longitudinally ERW welded pipes has become very common in peop...
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