... , engraving fonts 3,ROHS products Product name MP4 computer headset aluminum shell Materials Available1. Stainless Steel: SS201, SS303, SS304, SS316, SS416 ... , etc5. Iron: 1213, 12L14,12156. Aluminum: Al6061, Al60637.OEM according to your requestProducts Availablebolts, screws, nuts, rivets, stem nuts, shafts(axles, spline ...