Lei Yang (1975.05-1979.11)


Lu Qing (    -1983.04)


Liang Feng(concurrently) (    -1986.11)


Xie Zhenliu(concurrently) (1987.03-1991.01)


Lin Tinghai (1991.03-1994.04) 


Wang Jiaji (    -1995.07)