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Dramatic changes for Chinese miners in the last 30 years

2015-03-23 06:27

By (chinadaily.com.cn)

Dramatic changes for Chinese miners in the last 30 years

[Appearances] Some underground miners of Yanzhou Mining Group were having a rest in the 1980s. With black ash stuck on their faces, they had to wash their faces for a long time before it came off.[Photo/news.qq.com]

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