... 9001:2000 certificate 4.Customized drawing CNC Machined aluminum parts features:1.Material of CNC machined aluminum parts: carbon steel, ... cutting steel, brass, aluminium or stainless steel.2.Finish of CNC machined aluminum parts: zinc plated(Cr3), smoothly oil, anodized, ... e-coating or powder coating.3.Tolerance of CNC machined aluminum parts: +-0.001mm.4.Customized drawing appreciated. ...