DW. Fans series is a vertical HVLs energy-saving fan developed by King ventilation. It breaks the installation restrictions of traditional industrial fans and is suitable for more indoor and outdoor places that need ventilation and cooling, such as airports, high-speed railways, amusement parks, bars, restaurants, citizen squares, commercial complexes, etc. DW. Fans series solves the industrial problem of outdoor cooling. In the outdoor, due to the limitation of site and environment, the general