... :T4 T5 T6 2.Material:6063 6060 3A21 3003 3.Surface:Anodized/powder coating/Mill finish Product nameindustrial use or building profileSizeMax ... , silvery white, champagne, etc.ApplicationLights, machines, automatic equipments, (industrial use or building material) etc.FeatureSquare tubes or circular tubes, Smooth surface, regular ...