High quality staff perfect production management system,advanced processing equipment,precision testing instruments to ensure the quality of compressor.Today,the company relision on advanced marketing idea,the consummation post-sale service principals of "high quality,hig performance,low price" advantage,made Donglin strong competitiveness,by the market and customer's trust and recognition.Company marketing network across the whole of China not only,and the products are erported to Germany,USA,Brazil,Southeast Asia,more than 20 countries and regions,and maintain the good situation of annual sales growth rate.