1)Material:Copper, high speed steel, carbon steel, alloy 2)Application:, precision model dies 3)Dimension: as your drawing Punching dieFeature Material: Copper, high speed steel, carbon steel, alloy Specification:nonstandard, as customers’ requirement.Application:It is the main die, the tooling in making screw. Processselectmaterial → rough lathing → heat treatment → pressure tungsten steel → ...