... 2. Good quality 3. OEM is welcome For Iphone Cover, Aluminum Cover Business Scope CNC center ... According to the customized sample or design drawings. Surface Treatment Heat treatment, plating(zinc, nickel, chrome, ... ,etc. Inspection CMM, mechanical property tester, RoHs tester, projecting apparatus, roughness tester, hardness tester, concentricity tester, digital height gauge,caliper. Third ...