1) Fans are widely used in industrial and civil architecture for ventilation and air treatment. Medium and low-end fans dominate the industrial and civil building market with 65% of the share. 2) Demand for high-end fans is growing in industries like nuclear power, wind power, and petrochemical due to China's development of heavy industry and infrastructure projects. Key players in China's fan industry are developing technology through R&D to compete internationally. 3) The document discusses China's fan industry trends, leading manufacturers, and market analysis through 2013. It provides statistics on revenue, market share and projects for major companies in the industry.