... ,8407,S136,NAK80,P20,KD-61,NIMAX ect ;3 Hardness of the steel : 20-60HRC ;4 Cavity Qty : Single-cavity / Multi ... Years Professional Manufacture Experience, Specialize in design and the manufacture of Plastic Injection Mould and tooling for Automotive, Electronic equipment,Medical Products ... EDM Milling machine 5 Milling Machines Wire Cutting Machine Molds/Injection moulds for plastic products