1. First of all, ensure that the water quality meets the standards, and strictly monitor and man...
From the overall measurement of material performance, construction, cost, and use effect, epoxy ...
1.1 Manual welding with cellulose downward electrode When there is a pipeline with sever...
The lining stainless steel composite steel pipe (304+Q235B) is a new type of composite pipe, w...
1. According to national standards: integral flange, threaded flange , butt welding flange, fla...
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...
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...
1. The welding process adopted by submerged arc steel pipe is submerged arc welding technology, ...
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