Huang Zhiliang (1985.11-1989.09)


Xu Shaohai (1989.09-1993.12)


Liao Qiping (1994.03-1997.08)


Huo Shuzhen (female) (1997.09-2000.06)


Shen Qing (2001.03-2004.08)


Li Jiaoyun(2004.09-2007.06)


Sun Rongmao (2007.06-    )