1.aluminum pipe 2.1000,3000,5000,6000 materials, more normal alloy 3003, 6061,6063. 3.Diameter: outer:1- 650 mm, or 8", ... large diameter aluminum tube and pipeIndustry Aluminum pipes and Seamless aluminum tubes.Key sepcial features:Alloy :1060,1100,2011,2017,2024,3003,5052,5083 ... H112,T4,T5,T6, and T8Diameter: outer:1- 650 mmThickghass: 0.2 -50 mmCustomized lengths are acceptedASTM, BS AND EN STANDARD ...