Below right workers are celebrating the successful trial production of the SH380 32-ton dump truck for mining, September 1969 at the Shanghai Automobile Manufacturing Plant. The SH380 was based on a Russian example.
The slogan in the background, top left: "Independent and self-reliant" (独立自主自力更 生).

The Printing and Dying Mil group is credited on the poster, Shan Xihe is identified as author in Shanghai xiandai meishu shi da xi 1949-2009 8: Xuanchuan huajuan (上海现代 美术史大系 1949-2009 8 宣传画卷 - Shanghai Modern Fine Arts History Series Volume 8: Posters (Shanghai: Shanghai renmin meishu chubanshe, 2012).