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50-180g/m2 Galvanized Steel Coils Roll carbon steel sheet DX51 D+Z or S250 JD+Z Material grade TDC51D2,TDC51D+AZ,TDC51D, GR.A, GR. B, SPCC, SPHC, DX51D, ect. Tensile strength 315-750MPA Thickness 0.12...