... alloy 6063,6061,6A02,3003,etc top quality,reasonable price large diameter aluminum tube 1.Specifications PRODUCTaluminum tubeALLOY1060,2A12,3003,3A21,5A02 ... ,6063,6061,6A02 OUT DIAMETER 20-250mmWALL THICKNESS 3-20mmSHAPE round, square ,oval, flat ect APPLICATION machine,construction,decoration,furniture,industry ... -531- 87866700.I will reply you soon 20mm-250mm large diameter aluminum tube 6061 6063