poultry shed  ventilation fans

Features:
1 frame advanced automatic processing technology, thick hot zinc coating, corrosion resistance.
2 high-strength cast steel wheel
3 twisted metal forming of new blades, blade angle of its reasonable, can achieve the optimal level of air flow
4 Open the blinds open and close with a unique structure, to ensure fully open and close blinds, shutters closed to play rain, dust, foreign objects, wind down the role of anti-
5 demolish the rear safety net of convenience, power built-in, easy installation
6 high efficiency, low energy consumption, rational design, low noise, large wind, good ventilation, low maintenance costs.