... .or acorrding to customer requires Length:6",12".18",22" anodized sliver, telescopic aluminum tube1000,5000 ,6000 aluminum extrusion>3 mm .acorrding to customer ... .4, Surface processing: Mill finish, Powder coating, Anodizing, Sandblasting, etc.5, Deep Processing: Cutting, Drilling, Punching, CNC machine6, Package: According to ...