1. Fake and inferior thick-walled steel pipes are prone to folding. 2. Fake and inferior t...
Let's first talk about the original surface of the stainless steel tube: NO.1 The surface that is su...
The commonly used nondestructive testing methods for steel pipes include radiographic testing (R...
If the large-diameter spiral steel pipe is processed to a certain length, bending must exist, wh...
(1) After steel pipeline pickling, the rust and oil on the inner wall of the pipe are completely...
1. The spraying process of 3PE anti-corrosion steel pipe At present, most 3pe anti-corrosion ...
Basic requirements for the appearance of straight seam steel pipe welds 1. Surface of welde...
Construction preparation before welding of large diameter steel pipe : 1. Organize relevant ope...
There are many methods for quality inspection of large-diameter longitudinally welded pipes , amo...
1. There are strict technical requirements for the installation and use of straight seam steel pip...
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