
A steel plant staff is in conflict over whether to use domestic materials or continue importing from the Soviet Union after the Soviet Union adopts an anti-Chinese position in 1972.
7.1
7.2
7.7
6.5
6.7
6.1
6.7
6.1
7.3
5.9
6.3
6.8
5.9
7.0
8.3
6.4
6.4
6.5