... 9001:2000 approved 4.Customized drawings Aluminum Turning Parts features: 1.Material of aluminum turning parts: carbon steel, free cutting steel ... , brass, aluminium or stainless steel.2.Finish of aluminum turning parts: zinc plated(Cr3), smoothly oil, anodized, e- ... coating or powder coating.3.Tolerance of aluminum turning parts: +-0.001mm.4.Customized drawing appreciated.5.Delivery ...