The characters and the advantages of TG no powerVentilator1. The theory of its running Our no-power ventilators needn�� electric power instead of easily driving the turbine vanes to rotate by nature breeze or the temperature difference between indoor and outdoor so as to make true the running without cost. They are really practical and energy-saving products without noise and pollution so they can save much electricity and labors for users, in order to lower production cost clearly, to improve the working surrounding of the workshop, to rise the working efficiency and even to strengthen the quality of their products.2. The constitutes of the material Our no power ventilators are made of whole stainless steel, galvanized sheet and aluminium which needs no maintenance longer, are anti-acid and anti-erosion by the only once investment. TG no power ventilators set up UBC bearings which are imported from the USA and can beassured for using about 15 years.3. The values of no power ventilators A. They can exhaust the hot air, waste gas, dust B. Lower the users��production costs. C. Enhance the concept of their safety in workshop.D. They can demonstrate the strength and the humanization management of the enterprise, enhance the "people oriented" principle of the modern enterprises and make a show of the time�� colorfulimage. E. Beautify our living and working surrounding.