1. According to national standards: integral flange, threaded flange , butt welding flange, fla...
Precautions for hot-dip steel pipes : The pipes that transport hot water can transport cold wat...
API 5L GR.B/ASTM A53 GR.B (HOT EXPANDED ERW STEEL PIPE) ...
Non-destructive testing of the inside of the weld. Because the pipeline belongs to the extra-lar...
1. During the forming process, the steel plate deforms evenly, the residual stress is small, and...
According to the latest statistics from the American Iron & Steel Institute (AISI), in the w...
There has been a sudden increase in the demand for steel on which many important industries depe...
A. Visual inspection Visually inspects the appearance quality of the coated steel pipe ...
1. Thick-walled steel pipe cutting: According to the actual required pipeline length, the pipe s...
A. The feature of non-destructive testing is that it can be tested without damaging the material...
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