stamping die part 1.Material:copper alloy 2.thickness:0.3mm 3. ... , and insulation fiber plates. Production range from conventional metal stamping, progressive stamping, deep drawing, welding, spot welding, tapping, polishing, and assembly ... ,Wire Cutting machines,EDM Machines.2).Process:Conventional metal stamping, progressive stamping, deep drawing, welding, spot welding, tapping, polishing, and ...