permanent 
Precision seamless steel pipes expansion coefficient is a method of inspection that can be applied to the joint gap of the annealing furnace with soapy water to see … Read more
The base material of anti-corrosion steel pipe mainly includes straight seam steel pipe, spiral steel pipe and seamless steel pipe, and has a wide range … Read more
Straight seam steel pipes are mainly used in domestic water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction. For … Read more
High-pressure seamless steel pipes for pseudo-deterioration equipment usually have the following characteristics: Pseudo-deteriorating fertilizer The pseudo-deteriorating fertilizer device is easy to fold with a high-pressure … Read more
Hot-rolled seamless steel pipe is divided into general steel pipe, low and medium pressure boiler seamless steel pipe, high pressure boiler seamless steel pipe, alloy … Read more
The high-frequency erw steel pipe is different from the ordinary welded pipe welding process. The weld bead is melted from the base material of the … Read more
