11-62-Centrifugal Fan is a high-efficiency, low noise centrifugal fan, it is advanced by the aerodynamic structure of the multi-leaf before the impeller, the spiral cases, arc-shaped components into the wind. A new structure, compact, vibration, and other small features. General pumping soot or places of ventilation purposes. 11-62 in the fan-shaped structure is divided into single-and dual-wind into the wind into two types. Into the wind by Y-B3 series of straight motor structure, dual-use built into the wind, low-noise rotary motor.单进