1.Material:Aluminum alloy 2.Size:customized 3.Finish:blue anodizing 4.Tolerance:+/-0. ... .3).Materials: Stainless steel ,cold work steel ,spring steel ,aluminum alloy,brass, bronze,copper, plastic ,according to customer request4).Finish:Anodizing ... ,powder coating and painting according to customer's requirements.5).High quality control.100% inspection before shipping.Measuring tool:CMM,Projector ...