The fans from the frame, support frame, motor, fan, to the wind plant, shutters, protective nets and other components. Stainless steel, galvanized plate, aluminum and other materials. The fan with air flow, low noise, low power consumption, smooth running, long life, beautiful, easy to install, etc, well received by users like, apply negative pressure ventilation in the vertical room, has poultry house, greenhouse flower greenhouse and so on.
