Aluminum pipes are mainly divided into the following types Divided by shape: square pipe, round pipe, pattern pipe, special shape pipe, global aluminum pipe. According to the extrusion method: seamless aluminum pipe and ordinary extrusion pipe Divided by accuracy: ordinary aluminum tube and precision aluminum tube, the precision aluminum tube generally needs to be reprocessed after extrusion, such as cold drawing, rolling. Divided by thickness: ordinary aluminum tube and thin-walled aluminum tube Performance: Corrosion resistance, light weight