BMC Moulds1.Material:S50C,2738,H13,S136 2.Cavity Qty:Single ... Base:LKM We are specialized in designing and making BMC Moulds Product Name BMC MouldsCore & Cavity Steel S50C(45#),40Cr,P20H,718H ... ,2738,5CrNiMo,38CrMoAC,H13,S136HSteel hardness HRC 28--50Molding Way Compresion molding ...