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No Power Ventilation Fan is the device that could accelerate any parallel airflow and transform into virtical to improve efficiency of ventilating indoors .Our Ventilators are all made of stainless steel? ,UBC bearings from USA .All the parts of the ventilators are finished by professional molding tools and assembled by professional equipments .It works without electricity but taking advantage of natural wind and temperature contrast .The Service life could be more than 10 years .We manufacture and supply various sizes of ventilators such as TG-880 ,TG-700 ,TG-600 ,TG-500 ,TG-400 ,TG-300 and specially customized sizes widely used in factories ,storerooms ,large buildings and so on .
Product Characteristics :
1.No power , It works automatically by natural wind and temperature contrast , saving a large quantity of operation expenses .High ventilation efficiency.
2.Long service life .It can work more than 10 years .
3.Install easily , saving lots of labour and material cost .Need no repair .
4.It suits all factory workshops that need to refresh the air .
5.The water falling on it will be swing out and won 't leak.
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No Power Roof Turbine Ventilation Fan
