1975- 1978 worked in the quality inspection department of Siyang Grain Processing Factory;
1978- 1984 served as the biotechnology section chief and production technical director of Xiyang biochemical factory;
65438+June 0984-65438+February Huaiyin Institute of Chemical Technology established a biochemical laboratory;
1985 1 has been engaged in medical technology management in the pharmacy department of Huaiyin chemical and pharmaceutical bureau.