Aluminum extruded finned tube is a processing form of finned tube, which is rolled from aluminum tube and steel tube or stainless steel tube (copper tube). The aluminum tube is tightly sleeved on the base tube and extruded by a machine to form fins. The base of the fins is closely attached to the outer wall of the tube. It is a wear-resistant, new-type and high-efficiency thermal material. Breakage, melting, etc. will occur. Stainless steel fins are finned tubes processed by advanced production equipment.