Aluminum strips for radiator fin are usually made of aluminum alloy and have a series of grooves or fin structures on their surface. Radiator fin is a structure with a flat and thin shape, usually rectangular or parallelogram, used in radiators (or heat dissipation devices) to effectively dissipate heat, reduce the temperature of the equipment, and ensure the normal operation of the equipment. Typically used with high temperature or high power equipment such as electronic equipment, car engines, air conditioning systems, etc. The design and material selection of the radiator fins directly affect the cooling performance of the device.