alloy steel plate 2.Standard:ASTM,AISI,DIN,EN,GB 3.Thick:0.5~500mm 4.Width:0.1~3m,Length:1~6m 40Mn2 50Mn2 Alloy Steel Plate CommodityA572 Gr50 A709 A633D St52 S355JO S355JR S275NL 40Mn2 16Mn 15MnV low alloy steel plateThickness4-120mmWidth1500-3600mmLengthas custom's requestTechniqueCold rolled or hot rolledSurface treatmentBare, galvanized coated or as customer's requirements.StandardASTM,EN,GB, ...