1. Grinding of the pipe mouth of seamless steel pipe: After cutting, the plastic layer of the pipe mouth should be polished with an angle grinder. The purpose is to avoid melting or burning of the plastic layer during flange welding and destroying the pipe. Use an angle grinder to polish the plast

Seamless steel pipes are very common. Commonly used seamless steel pipes are rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel, and are mainly used as pipelines or structural parts for conveying fluids. According to different uses, it can be divided i