DDT-low noise and more fan-wing centrifugal my company to meet the growing industrial and environmental noise purify the needs of the fan design used in the design of noise, aerodynamic efficiency, and other parameters of the multi-objective optimization design And achieved the best performance整机match. Has a good aerodynamic performance, leaves are covered by strict belt of the static and dynamic balance correction, the operating balance, low noise, traffic, small vibration, the advantages of long life. Wider application in the unit canteens, guest houses, restaurants, restaurants and other public places in the kitchen exhaust, fumes from pumping or ventilation purposes and for food machinery, chemical machinery, plastic machinery and other production equipment to use. Widespread use, strong adaptability.