roof mounted ventilator model

Products Name:turbine ex
Quantity:according
Packaging:by boxes
Full Size:material:s
Place of Origin:Shanghai
Main charactoristics of model 450-A (variable angel pipe neck)
Blades: 25
Total height: 600mm
Turbine diameter: 570mm
Ventilation caliber: 450mm

Main charactoristics of model 450-straight-like)
Blades: 25
Total height: 450mm
Turbine diameter: 570mm
Ventilation caliber: 450mm
Advantages of model 450
1.Use the power of wind insead os electric,so energy saving
2.Save business cost
3.ventilate well
4.Can continue working for about 10 years
5.Easy to install