... 3.Finish:oxidation,sand blasting. 4.ROHS,OEM,ISO 9001:2000 We are a manufacturing ... iron(SGCC,SPCC,SECC),etc.3.Surface treatment: kinds of plating (Zinc, Nikel, Chrome, Tin, Ag); Painting ... service aftersales service.8.Gain certificate of The Hong Kong Metals Manufacturers. Association Membership Certificate and Good faith enterprise certificate.9.OEM service ... .Welcome!! Metal stamping part(OEM service)