This aluminum extrusion friction-stir welded, liquid-cooled aluminum alloy motor housing offers excellent heat dissipation. Even after continuous operation for many hours, it maintains a specific temperature, which aids in heat dissipation for automotive motors. The water channels are constructed using innovative friction-stir welding technology, making it energy-efficient and environmentally friendly. Aluminum is a lightweight metal, so the product is relatively light, helping to reduce vehicle weight and facilitating transportation and installation. This is a high-quality, high-efficiency aluminum extrusion friction-stir welded heat sink. Thanks to precision machining, its surface is smooth and burr-free, making it a worthy choice.