Aluminum tubes are divided into the following categories 1.According to the shape points: square tube, tube, pattern tube, shaped tube, global aluminum tube. 2.According to the extrusion method points: seamless aluminum tube and ordinary extrusion tube 3.According to the precision points: ordinary aluminum tubes and precision aluminum tubes, including precision aluminum tubes generally need to be processed after the extrusion, such as cold drawn fine pumping, rolling. 4.Thickness by: ordinary aluminum and thin-walled aluminum tube 5.Performance: corrosion resistance, light weight.