●Aerodynamic Fan Design：Injection-molded composite plastic shell, delivering large air volume, high efficiency and strong corrosion resistance. ●Customized High-performance Motor：Self-developed EC motor variable frequency direct-drive motor; stable speed, strong load capacity; supports 0-10V/RS485 dual control; IP66 protection & Class F insulation for harsh environments. ●Innovative Butterfly Panel：Premium spray-coated galvanized valve plate ensures high strength, no deformation and excellent sealing; balances large air volume with reliable operation.