Tool Steel, Precision Mould, Mold Making manufacturer / supplier in China, offering 1.0503//45#/1045/S45c/1.0540 Carbon Steel Round Steel, 1.1213/50#/1050/S50c Hot Rolled Carbon Steel Plate Plastic Mould Steel, Hot Rolled AISI ASTM 1.1213/50#/1050/S50c Carbon Steel Plate and so on.