... . Non-toxic processing 5. Advanced technology , Material aluminium alloy: 6061 /6063 T3-T8 Shapeaccording to drawing ... so on. 2, Typical chemical composition (GB/T3190) Aluminium GradeSiFeCuMnMgCrZnTiimpurityAl60630.2-0.6<0.35 <0.1 <0 ... high brightness and hardness.4.Good suface frame,complete specifications,astacctive appearance and superior performance. ... you more details. 2012 solar aluminium frame