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1952
July 1
The Chengdu-Chongqing Railway, the first railway trunk line built entirely with domestically produced materials after the founding of the PRC, was completed and opened to traffic. By the end of 1978, railways such as Baoji-Chengdu, Yingtan-Xiamen, Baotou-Lanzhou, Lanzhou-Xinjiang, Chengdu-Kunming, and Hunan-Guizhou had been completed one after another.