Zhang Zai (Concurrently)(1989.10-1990.06)


Shi Chunlai (Concurrently)(1990.09-1991.06)


Li Qinping (1991.06-1994.01)


Chen Yongcheng (1994.02-1997.08)


Xu Jun (1997.09-2002.03)


Zhang Binhua (2002.04-2004.06)


Yang Qiang (2004.06-2006.10)


Liu Fei (2006.10-      )