• Q345R steel
  • 16Mo3 steel
  • A283GradeC steel
  • A516Grade70 steel
  • A572Grade50 steel
  • cortenA steel

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Ministry of Commerce of the P.R.China China Commodity Net

Next, the pipes are threaded and receive a strength enhancing copper plating. Nondestructive quality control inspection then takes place, after which the pipes are welded to tool joints. Pipes then undergo weld heat treatments and a weld finishing processes that removes welding stress.

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