Alloy:3003,3012 Advantge:Harder than 1070ally. Better used in heat exchanger Quality:ISO9001-2000 CTI Air conditioning pipes,tubes 3003,3103,3012,aluminum extruded tube 3003,3103, extrusion aluminum tube/pipe ,aluminum bushing,seamless aluminum tube .Our aluminum tube &pipe is used for air conditioner,refrigerator,roll-bond evaporator,heat exchanger ,oven gas,car radiator,air conditioner pipeline ...