A new coal-mining centre has been built in the Wumeng Mountains in southwest China's Guizhou Province. This is the Liupanshui coal-mining base, covering 20,000 square kilometres shaped like an...
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A new coal-mining centre has been built in the Wumeng Mountains in southwest China's Guizhou Province. This is the Liupanshui coal-mining base, covering 20,000 square kilometres shaped like an...