... colors and black, engraving fonts 3,ROHS products Product nameMobile phone metal partsMaterials Available1. Stainless Steel: SS201, SS303, SS304, SS316, SS416 ... , gold passivation, galvanizing, satin, etc.Processing Methodcnc machining, turning, milling, drilling, grinding, broaching, welding and assemblyQC (inspection everywhere ):Technicians self-check ...