... ,machining parts with different materials,such as brass,aluminum alloy,steel,stainless steel,zinc alloy.3.our strong R&D and QC ... Multiple MaterialH13, DIEVAR, QDN, 8407, 2344V, TQ1, 2343, SKD61, 45#steel, etc.Heat treatmentHardened, NitridingHardnessHRC50~55 Mould featureAdvanced design, Novel structure ...