... zinc plated,black,etc 4.flat,pan, etc. cnc machined aluminum parts 1.Surface Finish: annealing, natural anodization, heat treatment ... ourself to smile to each customer1)Details: Product name cnc machined aluminum parts Material1.Stainless Steel: SS201, SS303, SS304, SS316 ... , C52100, C54400, etc5.Iron: 1213, 12L14,12156.Aluminum: Al6061, Al6063 SpecificationM3-M36ColorPlain, blue plated, white plated ...