... .Material:Aluminum alloy 2.Size:per customer design 3.Finish:golden anodizing 4.Tolerance:+/-0.02mm. Production Range:In cnc machining ... ' drawings or samples.3).Materials: Stainless steel ,cold work steel ,spring steel ,aluminum alloy,brass, bronze,copper, plastic ,according to customer ... Turning0.005Grinding0.002ID/OD Grinding 0.002Wire-Cutting 0.002 golden anodized aluminum cnc machining products