Jinan Diesel Engine CO.LTD(JDEC) is the only international-combustion engine manufacturing enterprise belonging to China National Petroleum Corporation(CNPC).It is also the manufacture of off-highway medium&large power engine in China.At present,it covers area 600,ooom²and has more than 2000 employees.the total asset is more than 800 1995,JDEC got the CCS ISO 9001 quality system 1996,it was listed in Shenzhen Stock Exchange as Shiyoujichai.