However, domestic enterprises to continuously strengthen technological innovation, leading domestic companies within the industry BOGE piston compressor, such as slope stake in technology continue to forge ahead, the company's products reach the international level, the foreign high-end market has been dominated by the gains. With the escalation of the continuous improvement of product performance and technology, the market share of domestic enterprises have increased every year. With screw-type compressor, for example, offer 2009-2011 piston compressor screw air compressor sales of 14,800 units by the value 32800 piston compressor, the annual compound growth rate of 48.87% market share by 2009 14.10% to 19.40%; sales of 00,800 units from 20,100 units increased market share rose to 11.90% from 0.80%, Shandong piston compressor, developed very rapidly. 5, can be divided according to type: fixed, mobile, closed. Piston air compressor displacement compressors - directly depend on changes in gas volume to increase gas pressure compressor. Piston compressor - is a positive displacement compressor, the compression element is a piston reciprocates within the cylinder. Rotary compressor - is a positive displacement compressors, forced movement by rotating element to achieve. Discharged after being compressed. Which is good piston compressor, air compressor Xingchang (certified), piston compressor is provided by Xingchang Pneumatic Machinery Co., Ltd. Qingdao. Qingdao Xingchang Pneumatic Machinery Co., Ltd. (www.xckyj.com) is a leader in Qingdao, Shandong, industry-specific equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Xingchang Pneumatic Machinery leadership with the staff warmly welcome all inquiries negotiations to create Xingchang Pneumatic Machinery a better future.