The market size of China's air compressor industry are more than 8% growth rate increase, even more than the 2010-2011 annual growth rate of 28%, the market size expanding rapidly. However, the scale of such a huge market, in the past a very long time to master most of the market by foreign companies. In 2009, total production of air compressor industry of nearly 400 companies, of which the number of domestic enterprises close to 90%, total sales revenue of about 60 billion, 40% of the total industry; close to 10% foreign ownership, the sales revenue a total of about 90 billion, 60% of the total industry.