Employment of Duan Hongcheng,–: Zhongxing Coal Mining Company 山東嶧縣中興煤礦公司 (井下實習)

 Occupation: id 62857
Organisation
Zhongxing Coal Mining Company 山東嶧縣中興煤礦公司 (中興煤礦公司)
Original occupation text
井下實習
 
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Duan, Hongcheng 段宏程 (1909–)
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