... ,T6 etc. 3.Processing:Extrution,cutting,CNC(Milling),Anodizing. 4.Surface treatment: including cutting, milling, turning, drilling, tapping, stamping and anodizing, CNC ... .Optimum design for different type,associated design parameter is provided.Surface treatment:anodized,powder coated,polished,mill finished,sand blasting,wiredrawing ect ...