Title: Nanjing Yong li ya chang zhan shi sun shi ji zhan hou chong jian dang an hui bian
Subjects: Sources, History, Chemical industry, Industries chimiques, Histoire, Yong li hua xue gong ye gong si. Nanjing ya chang, Yong li hua xue gong ye gong si
Places: China, Nanjing Shi, Chine, Nanjing (Shi)
Time periods: 20th century, 20e siècle