... steel, iron, alloy, zinc , carbon steel, rubber and plastic .etcFinishPolishing; Anodize; SandingPowder coating; Vacuum Plating; Tin,Silver ... Grinding: +/- 0.001mm (+/- 0.000039 inch)Packing Inner-Plastic Bag; Outer -Standard Carton Box,Single polybag, bubble bags ... architecture, commodity and A/V equipment, hardware and plastic molds, sports equipment and gifts,etc.Quality ControlConducted by ISO ...