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a. Pickling passivated seamless steel tube dipping method. Stainless steel pipelines, elbows, small parts, etc. are most suitable for this method, and the processing effect is the best. Because the tr...

According to GB / T3092 "Welded steel pipes for low-pressure fluid transport", the nominal diameter of the welded pipe is 6 ~ 150mm, the nominal wall thickness is 2.0 ~ 6.0mm, and the length of the we...

Cold drawn precision seamless steel pipe has the characteristics of no oxide layer on the inner and outer walls, high pressure without leakage, high precision, high smoothness, no deformation during c...

"ERW steel pipe" is a high-frequency straight seam resistance welded pipe. It is used to transport vapor and liquid objects such as oil and natural gas, and can meet various requirements of high and l...

Hydrostatic test of casing pipe: ①. Use high-pressure water gun to clean the inside of the tube; ②. The surface of the thread must be coated with lubricant to minimize damage during the hydrostati...

How to control defects in seamless steel tubes： 1. Blowing process 1) The injection pressure should be matched with the diameter and length of the capillary tube, to ensure that the blowing is str...