HS7-4-2-5 / 1.3246 ... Mould Steel: NAK80(HPM50/10Ni3MnCuAl), S136(4Cr13MoV)New Mould Steel: Y4(4Cr3Mo2MnVNbB), HD(4Cr3Mo2VNiNbB), ... electric power cost is less than 0.05USD/unit;2)Gas Cost:We ... Based on strong technology team,we produce high level special steels .4)Quality Warranty: ... and be well equipped for materials chemical analysis,mechanical property,Macro-structure,Micro-structure,Metallographic ...