Zheng Li's work experience
1987.8-1991.10 Central South Office of Metallurgical Department1991.1-1. 1995.3- 1996.5 New Age New Materials Development Company,1996.5-1997.12 Hongxi Changxin Group (Taiwan-funded),1998.5- 200 1.6 —— School of Management and Economics, Beijing Institute of Technology