... ,T6. 2.Surface treatment:anodized,powder coating,pvdf,brush,polish,wooden transfer 1.Aluminium alloy/temper:6063,6061,T4,T5,T6 ... .2.Surface treatment:anodized,powder coating,pvdf,brush,polish,wooden transfer3.Colour:Silver,bronze,champagne,black,blue,glod,and so ... machine is the largest machine in the souther China aluminium window blind