The market size of my country's air compressor industry is growing at a growth rate of more than 8%, and the growth rate in 2010-2011 even exceeded 28%, and the market scale is expanding rapidly. However, in such a huge market, for a long time in the past, foreign-funded enterprises controlled most of the market. According to the data from Qianzhan.com, in 2009, there were nearly 400 production enterprises in my country's air compressor industry, of which nearly 90% were domestic-funded enterprises, and the total sales revenue was about 6 billion yuan, accounting for 40% of the entire industry; the number of foreign-funded enterprises was close to 10%, and the total sales revenue is about 9 billion yuan, accounting for 60% of the entire industry.

However, domestic-funded enterprises continue to strengthen technological innovation. Leading domestic-funded enterprises in the industry, such as Kaishan Co., Ltd., continue to forge ahead in technology. The performance of the company's products has reached the international level, and has achieved some gains in the high-end market dominated by foreign investment. With the continuous improvement of product performance and the continuous upgrading of technology, the market share of domestic enterprises has also increased year by year. Taking screw air compressors as an example, from 2009 to 2011, the sales of screw air compressors increased from 14,800 units to 32,800 units, with a compound annual growth rate of 48.87%, and the market share increased from 14.10% in 2009 to 19.40%; From 8,000 units to 20,100 units, the market share increased from 0.80% to 11.90%, and the development is very rapid