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ASTM A333 Gr. 6/16mn/Q355/S355 Hot Rolled Seamless Rectangular Round Steel Pipe A36 A53 A106 Q235/20# 45# Sch40 Carbon Welded Tube

ASTM A333 Gr. 6/16mn/Q355/S355 Hot Rolled Seamless Rectangular Round Steel Pipe A36 A53 A106 Q235/20# 45# Sch40 Carbon Welded Tube
  Seamless steel pipe with hollow section, a large number of used for conveying fluid pipeline, such as conveying oil,...

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