The Operating Theory of TG Turbine Ventilation: â_ The undulating vanes lead to smooth rotation at light wind. The bearings at lower and upper position make smooth turns. â_ The motility created by the rotation of the vanes brings the hot air, smoke and wet air up to the roof and exhausts them out. â_ Because the turbine is went on rotating, the fresh air outdoor can enter into the room continually so that the room can ventilate conveniently. â_ The single rotating mechanism will work normally except there is the severe natural damage during 15 years. Our Turbine ventilators are possessed with the following traits: no power exhausting, saving energy and money; anti-acid-base, anti- erosion, long-lived used; no noise, no pollution, absolutely environmental protection; improving the air quality, raising working efficiency; conveniently setting up and so on. They are widely used in chemical industry, light industry, food, medicine, textile and dye, metallurgy, electrical power, construction, tunnel, machine and hotel, cinema and marketplace. Recent years later, our products are of demand exceeding supply, and we have our customers through all parts of the country and some foreign countries. according to customers' request