... ,Finsih:Anodic oxidation,engraving 3,size:customized 4,high quality and low price Product nameCD pattern aluminum shell for Headphones Materials Available1. Stainless ... )4. Bronze: C51000, C52100, C54400, etc5. Iron: 1213, 12L14,12156. Aluminum: Al6061, Al60637.OEM according to your requestProducts Availablebolts, screws, nuts ...