permanent 
The process of drawing stainless steel seamless steel pipe has many factors affecting the drawing force. According to results from many scientists and practical consumer … Read more
In the production process, the thread of the drill pipe of the spiral submerged arc welded steel pipe is used to check the tightness of … 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
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
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
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
