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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 made of a single piece of metal and have no seams on the surface, called seamless steel pipes. According to the production method, seamless pipes are divided into hot-rolled seamless steel pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, and top pipes. According t