Anti-corrosion spiral steel pipe also has the characteristics of convenient transportation and reliable connection. It adopts the double protection measures of external anti-corrosion and internal rubber lining, which can make the pipeline lighter during use and more convenient to install, which not

1. The main feature of ordinary seamless steel pipes is that they have no welded seams and can withstand greater pressure. Products can be very rough as cast or cold drawn.2. Cold-drawn precision steel pipe is a product that has appeared in recent years, mainly because the inner hole and outer wall

The surface quenching and tempering heat treatment of straight seam welded steel pipe is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness, and effective hardened layer depth. Vickers hardness tester can be used for hardness

High-pressure seamless steel pipes and high-pressure boiler tubes are a type of boiler tubes that belong to the seamless steel pipes category. The manufacturing method is the same as that of the seamless pipe, but there are strict requirements on the steel type used to manufacture the steel pipe. Hi