SEAMLESS STEEL PIPE
Seamless steel pipe is a steel pipe which is perforated by the
whole round steel and has no weld on the surface. According to the
production method, seamless steel pipe can be divided into
hot-rolled seamless steel pipe, cold-rolled seamless steel pipe and
extruded seamless steel pipe. Seamless steel pipes are divided into
round and special-shaped. The maximum diameter is 900mm and the
minimum diameter is 4mm. Seamless steel pipes are mainly used as
high-precision structural steel pipes for petroleum geological
drilling, petrochemical, boiler, bearing and aviation.