Shandong Lingyuan HTFC exhaust wind chassis of the most professional manufacturers, selling phone: 15953431771 HTFC ventilation and exhaust air box with high temperature, high-temperature exhaust system separated from the motor and the airflow isolation to ensure the fan at 300 degrees Celsius, the 60 minutes of continuous operation, excellent performance, the new structure is compact, vibration, light weight, easy to install, etc., is an ideal device hotels, restaurants, halls, theaters, basements, industrial enterprises, office buildings and other places of ventilation exhaust, is a high-rise building fire exhaust fan replacement products, are now sold all over the countries, praised by users. Solid structure. Box with frame, box board assembly design. Frame using advanced metal Roll Forming a stretching unit, box board for the dual board structure, inner silencer material, further reducing noise. HTFC ventilation and exhaust wind chassis fan impeller suction foundation for cooperation on the development of domestic and foreign institutions, all of mold production. Multi-leaf wing forward impeller with high efficiency, low noise, large air volume, stable, stable quality, durability and other characteristics. Volute using high-quality galvanized sheet steel or carbon steel plate, mechanized production.