cold extrusion die 1,Materials: HSS M2, SKH9 2,Tolerance: less ... 3,Working life: 20,0000times 4,8-10 work days cold extrusion die specificationsType circular, Square Header , hexagonal , R-shaped…MaterialHSS ... , China(Mainland)Machine TypePunching Machine Please specify the details of cold extrusion die follows when you inquiry1,The shape of punches ...