... plastic injection tooling 1) Injection mould material (for core and cavity) : 718, 136H, NAK80, P20 or according to customer's requirements ... ,NIMAX ect3Steel hardness20-60HRC4TreatmentPre-Harden, Nitriding, Heat treatment,Quenching5Cavity QtySingle-cavity / Multi-cavity6RunnerHot runner or Cold runner :YUDO/ MASTIP/ HASCO/ DME ...