... price 4)ISO 9001 certified Thickness0.4mm ~12mmEquipment5~250 tons punching machines, bending machine, cutting machine, welding machine, polish machine, grinding machine ... , aluminum (according to customer's requirement)ProcessStamping, deep drawing, bending, punching, threading, welding, tapping, riveting, grindingSurface treatmentpolishing, chrome/zinc/nickel plating ...