Zhou Hongbo (1967.10-1970.6) was appointed as the director of the third machinery department.

(1970.7-1971.11) (Director of Revolutionary Committee)

1972 in March, due to the quality problems of aviation products-airplanes, the Central Committee of the Communist Party of China and the State Council notified Li to be appointed as the commander of the air force of the Beijing Military Region, as the minister of the Third Ministry of Machinery Industry, and immediately removed him from the post of director of the Revolutionary Committee of the Third Ministry of Machinery.