This series has four banches : BDW-75-12 "(optional External Rotor Motor, with low noise); BDW87-4 (optional outdoor moisture, water-proof motor); WS-85-6 and WT4 -  85-11 (relatively favourable prices).Different place choose different kind.

There are many advantages , such as high efficiency, low noise, excellent corrosion resistance and so on. 

Brief introduction of major components

1, base:
it is made of  FRP , with a light weight, corrosion-resistant characteristics .


2, hood:
  use glass fiber reinforced plastic production, with the of smooth appearance , graceful curves, and more than  hundred colors. 

    
3, leaf: 
  use glass fiber reinforced plastic production, with high strength, long life-span, good stability.

4, thermometer screen:
  use glass fiber reinforced plastic production, with flexible use and good ventilation.

5, anti-bird net: 

use  metal mesh with more security.

6, electrical: 

use low-noise water-proof motorwidth low noise and strong stability.