Fake and inferior steel pipes are prone to folding. Folds are various fold lines formed on the surface of the steel pipe, and this defect often runs through the longitudinal direction of the entire product. The reason for the folding is that the counterfeit and inferior manufacturers pursue high eff

The special oil pipe is mainly used for the drilling of oil and gas wells and the transportation of oil and gas. It includes oil drilling pipes, oil casings, and oil sucking pipes. Oil drill pipes are mainly used to connect drill collars and drill bits and transmit drilling power. The oil casing is

Straight seam steel pipe derusting technology:In the process of anti-corrosion construction of oil and gas pipelines, the surface treatment of straight seam steel pipe is a key factor determining the service life of pipeline anti-corrosion. According to research by research institutes, the life of t

In the production process of stainless steel welded pipe, intermediate heat treatment and finished heat treatment can be carried out. Because a bright surface without oxidation can be obtained, the traditional pickling process is eliminated. The use of this heat treatment process not only improves t