R. G. Springsteen and Zheng Junli were both what?
R. G. Springsteen Robert G. Springsteen (September 8, 1904 – December 9, 1989) was an American director of Hollywood B movies and television shows. He was most often credited on screen as R. G. Springsteen.
Mao Jun Fa Mao Jun Fa (毛军发 ; born August 1965) is a Chinese professor of engineering at Shanghai Jiao Tong University (SJTU).