Appearance of Type 980-A Blades:42 Total height:800mm Turbine diameter:960mm Ventilation caliber:780mm Bottom palte aperture:780mm Capability and Advantages Exhaust the indoor harmful air refill with fresh air. Consequently improve the working environment, promote the workers¡¯ passion, enhance the company¡¯s overall working efficiency. Lower the cost, as this kind of product is one-time investment, without electricity and any other consumption. To enhance the security of workshop. Firstly,there¡¯s no need to worry about the explosion and electrical accident. Secondly, in case of fire, the roof ventilation equipment can accelerate the exhausting of indoor smoke. Reflect the strength of enterprises and human management. Strength the ¡°People-Oriented¡± concept of modern enterprises. Beautify the environment