Wu Yinxian Comrade Mao Zedong and Comrade Zhu De had a group photo with science and technical cadres in Yan'an
Lu Guang Massive water wastes flow into the Yellow River from the Lasengmiao Industrial District in Inner Mongolia
Lu Guang Workers in the factories have no immunity defenses. They get ill after one or two years on the job, Wuhai City, Inner Mongolia
Lu Guang Yang Xinrun, 15, came to work in the Heilonggui Industrial District with his parents, after he finished second grade in primary school, and earns about 16 yuan a day