Non power roof ventilation fan is a natural ventilator fan, the function is when 

there is a difference in thermal or wind pressure between the inside and outside of thebuilding 

which forces the air to move through the opening of the ventilator fan. 

It has two types: Stainless steel type and painted steel plate type. Easy installation, no noise,no 

energy cost. It is widely used for workshop, warehouse, green room, building, etc.

Technique Parameter:

 no power roof ventilation fan packed in carton

1. Poultry house site selection

2. Poultry house design and construction preparation guidance.

3. Breeding equipment installation

4. Breeding worker training

5. Breeding technology guidance

6. After-sale Service

Our company has concentrate on poultry equipment for many years.We already gain

many reliable customer with high quality,competitive price and superior

service.We sure any of your inquiry will get us prompt reply and highly

attention.Welcome you contact us here.You can trust us!!