... 4.tolerance:+-0.01 Equipmentplaner type milling machine ,cnc milling machine ,milling machine ,drilling machine , ... copper, mold steel ,and so onSurface treatmenthardening, carburizing, high frequency, anodizing, clear anodizing,black anodizing ,chrome plating ... CAD will be better) or samples. Processing MethodTurning, Stamping, Die/pressure casting, CNC processsing, Punching, Riveting, Bending, Cutting ...