insulated aluminum profiles: 1.Material: aluminum alloy6063/6061 2.Finish:mill,anodize.eletro-coating,etr 3.Custom service aluminum profileSpecifications 1.extrusion, all kinds of surface treatment 2.good surface. 3.aluminum profile 4.high quality and best price Material6063,6060,6061,6005TemperT4,T5,T6Surface treatmentMill Finish,Anodized,Eletropharesis,Powder Coated, Wooden Finish, ...