Spiral steel pipe is usually used in urban drainage pipelines. The use of spiral steel pipes i...
Cleaning method of large diameter steel pipe : 1. Shot blasting and rust removal: The high-powe...
Corrosion of steel pipes is mainly divided into two categories: internal corrosion and external ...
The welding seam of the spiral steel pipe is longer than that of the straight seam steel pipe ....
Welding method: When welding thick-walled steel pipes , first clean the oil, paint, water, rust, ...
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...
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