... . Advanced technology , Material aluminium alloy: 6061 /6063 T3-T8 Shapeaccording to drawing and sample (square, angle, flat, T-profile, rotundity, oval,slot ... , sandblasting,painting , so on. 2, Typical chemical composition (GB/T3190) Aluminium GradeSiFeCuMnMgCrZnTiimpurityAl60630.2-0.6<0.35 <0.1 <0.1 ... us,we are very glad to offer you more details. aluminium profiles solar frame