... 50 sets We can provide in-house design,tooling manufacturing,stamping,secondary machining and surfacture treatment service Material C.R.Steel, Stainless ... , plastic Making process Progression die, Stamping, deep drawing, Bending, Punching, Threading, Welding, Tapping, Riveting, Grinding, CNC machining Surface treatment Polishing, Anodize, Zinc ...