Shandong exhaust fan exhaust fan wholesale price wholesale price base Tel: 18653444408 Manager Wu -HTF exhaust fan HTF series fire temperature exhaust fan designed specifically for high-temperature exhaust. Equipped with high-temperature fan motors, totally enclosed motor built, and a special motor cooling system to ensure safe use of the electric motors at high temperatures. By objective optimization design, the company's HTF temperature exhaust fan fire, the sentence has excellent high temperature performance, high efficiency, low noise, reasonable structure, small size and easy installation. Installed on horizontal, vertical, lifting can be. Fans of the series have single-speed and two-speed two models, 12 kinds of machine numbers, two-speed fans equipped with two-speed motors through to achieve a dual-purpose machine, namely low speed for normal through ventilation, high speed for fire smoke .