Detailed Product Description Galvanized Pipe / Black Pipe / ERW Steel PipeOut Diameter: 10.3mm - 406.4mmThickness: 0.6mm 20.0mmSteel Grade: Q195-Q345, S235JR, S275JR, S355JR, Gr. B-DStandard: GB/T 3091-2001, BS1387-1985, DIN EN10025, EN10219, ASTM SCH40, ASTM SCH80Surface Finish: hot dipped galvanized, electro galvanized, black Out DiameterWall ThicknessLengthInchmm mm meter1/221.3mm 0.6mm-3.0mm0 ...