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Hot Rolled Steel Pipe Small Diameter Welded Black Surface Round Tube (20Mn)
TechniqueSurface FinishGrade SeriesThickness(mm)Width(mm)ApplicationMain Dimension20-85010001219124012501500Petro-chemical industry,TanksConstruction materialHot RolledNo.1 / 2E201/202/3042.2-12.0√√√√√Cold Rolled2B201/3040.25-3.0√√√√√&radic