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