Extruded aluminum alloy pipe 1) Aluminum tubes for refrigerators. 2) Different diameters and thicknesses available. Extruded Aluminum TubeVarietyO.D.or side ... ,2A12,2A14,2A16,2A50,6A02,7A04,7A09H112,O,T4,T60.3-6.0Round tube with thin wallφ ... ,2A11,2A12,6A02,6061,6063,6005,6066,6060O,T4,T6,H14,H181.0-6.0Square tube10×10 ... ,2A11,2A12,6A02,6061,6063,6005,6066,6060O,T4,T6,H14,H181.0-6.0Rectangular tube14×10- ...