... Service metal stamping precision part OEM supplier for metal part punching,stamping,bending, welding ISO9001 ; ISO14000 NameService metal stamping precision part ... red copper,brass, bronze alloy are availableSurface treatmentplating, Zinc plating, enamel, hot-dip, polishing, hardening ... clear anodizing, chrome plating, nickel plating, zinc plating, oil injection, black oxide coating and so ...