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Wenxin tunnel of China Railway 18th Bureau Group Co., Ltd.

2020-09-09
Wenxin tunnel of China Railway 18th Bureau Group Co., Ltd.

Gushan tunnel of Menghua railway constructed by China Railway 16th Bureau Group Co.,Ltd.

2018-05-09
Gushan tunnel of Menghua railway constructed by China Railway 16th Bureau Group Co.,Ltd.

China-Laos Mowan Railway of Sinohydro Bureau 15 Co., Ltd

China-Laos Mowan Railway of Sinohydro Bureau 15 Co., Ltd
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