... .temper:T5/T6 3.material:1000,6000 series Decorative Aluminum Square Tube 1.Material: AL alloy 6000 series, 3000series, 5000series ... , Anodizing, Sandblasting,etc.6.Color: Silver,Golden,Black,Red,Blue and so onWe have advanced equipments:1,Extrusion production lines ... in the same factory to ensure to the good quality and lead time.3).All OEM is welcome. high quality decorative aluminum Square Tube