Galvanized pipe

  Seamless steel pipe is made of the whole round steel with no weld on the surface, which is called seamless steel pipe. According to production methods, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, pipe jacking, etc. According to the section shape, seamless steel pipes are divided into two types: round and special-shaped pipes. The special-shaped pipes have many complex shapes, such as square, oval, triangular, hexagonal, melon seed, star and finned pipes. The maximum diameter is up to 900 mm and the minimum diameter is 4 mm. There are thick wall seamless steel pipe and thin wall seamless steel pipe according to different purposes. Seamless steel pipes are mainly used for petroleum geological drilling pipes, cracking pipes for petrochemical industry, boiler pipes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation.

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