1. The trademark and printing of the high-quality tube are comparable to the standard. 2. The comp...
(1) Effective electrical insulation. (2) It has good moisture and water resistance. (3) It has s...
Welded steel pipes can be classified into different types and types according to different class...
After a series of treatments such as forming, welding and cooling, the spiral steel pipe still n...
1 Judging from the surface, that is, in visual inspection. Visual inspection of welded joints is a s...
Anti-corrosion steel pipe is a common steel pipe. In order to slow down and prevent the steel pi...
The application of large-diameter longitudinally ERW welded pipes has become very common in peop...
Cleaning method of large diameter steel pipe : 1. Shot blasting and rust removal: The high-powe...
The welding seam of the spiral steel pipe is longer than that of the straight seam steel pipe ....
1. Fake and inferior thick-walled steel pipes are prone to folding. 2. Fake and inferior t...
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