... .Certificate: Rohs 4.2 weeks for sample Description of OEM stainless steel stamping parts:Material: brass ,steel, Iron, copper, aluminum Finish: plating ... tin etc, anodized, painting, black Process: stamping, machining, cold forming Main products: stamping parts, metal stamping, stamped parts,stamping, metal stamping parts, stamped metal partsEquipment: punching machine, lathe ,cold forming machine ...