... 2.temper:T5/T6 3.material:1000,6000 series Decorative Aluminum Square Tube 1.Material: AL alloy 6000 series, 3000series, ... ,Black,Red,Blue and so onWe have advanced equipments:1,Extrusion production lines.2,Anodizing and electrophoresis production lines.3,Spraying ... are in the same factory to ensure to the good quality and lead time.3).All OEM is welcome. high quality decorative aluminum Square Tube