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Canadain ambassador Arthur Menzies visits the PRC to promote Canadian Technology, Beijing 1978
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by Covell Meyskens
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On the right is 贾延良, who designed one of the main automobiles used by Party elites in the Mao era - the 红旗汽车. On the right is his teacher 郑可. Source
For more on the history of this project, see here.
排障, 张作良, 1960