... TreatmentPowder coating, hot galvanized, painting, polishing, brushing ,chrome/zinc/nickel plating,yellow passivation,gold passivation,satin,silk screening etc ProcessStamping, punching ... welding machines;Spot welding machines;Stamping machines;Rolling machine;Cold press;Turning machine;Milling machine;Grinding machine;Oil hydrulic press; Injection Molding Products AvailableBolts ...