Jiangsu sanzhong elastic technology co., LTD., located in sihong county, jiangsu province, is a new mixed-ownership joint-stock company invested by the industrial fund of China national nuclear corporation. At present, sanzhong covers an area of about 60 mu, and the plant area is about 10,000 square meters. Sanzhong owns more than 200 large punching machines and CNC machine tools, and is committed to the research, development and manufacturing of springs.The leading production are disc spring,wave spring and car spring. Products are exported to the United States, Britain, Germany, Australia, southeast Asia and other countries.