... :T6, T5 Finish:natural anodizing,hard anodizing,goden Anodizing aluminium tube, aluminum pipe specifications:Alloy: 6061, 6063Temper: T6, T5OD: 10-130mmWall thickness ... :silver,goden yellow,Anodizing kinds:natural anodizing,hard anodizingPacking:several tube in a plastic bag,then put into wooden pallet or ... should be of the same alloy or AL 4043 alloy. aluminum tube anodizing 6063