... And the delivery is on time. Other Specification: Item NO. Aluminum alloy CNC processingMaterialsAluminum No.2011, 2014, 2017, 2024, 1060, 3003 ... , 5052, 6011, 6061, 6063, 6082, 7003, 7005, 7075.DimensionsAccording to customer’s drawingSurface treatmentbrushing, sand blasting, polishing, powder ... cooperate with you. custom made large diameter aluminum turning pipe/ shaped tube 6063/6061/6082