... 12mmEquipment5~250 tons punching machines, bending machine, cutting machine, welding machine, polish machine, grinding machine etcMaterialsteel, stainless steel, ... 's requirement)ProcessStamping, deep drawing, bending, punching, threading, welding, tapping, riveting, grindingSurface treatmentpolishing, chrome/zinc/nickel plating, ... , igs, stp etcCertificateISO 9001 Stamping bracket automotive part