Fans are used in various fields of national economy metallurgy, petrochemical, power, urban rail transportation, textiles, shipbuilding and other ventilation as well as a variety of places. In addition to traditional applications in coal comprehensive utilization, the potential market of more than 20 technological areas dry process clinker, metallurgical industry and other energy-saving and comprehensive utilization of resources will have greater prospects for development. With the growing "Inflatable Air Blower" manufacturing industry competition, large wind turbine manufacturers merger integration and capital operation is becoming more frequent, more and more attention to outstanding domestic wind turbine manufacturers market research on the industry, especially for industrial development and the environment depth study of buyers of the products from the fan characteristics predict demand for the use of large wide range of small and medium sized wind turbine, the product structure and manufacturing process is relatively simple, lower cost, the user is the main pursuit of high efficiency, low noise, long life, and the price is cheap.