Последние добавленные видео:
coal-mining-proccess
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4 years ago
112617 4 years ago 15:53Documentary on COAL: Mining, History and Future Outlook
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8 years ago
2748194 8 years ago 4:43Digging for Hope: Inside an Ohio coal mine
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3 years ago
172234 3 years ago 1:23How Coal is Formed
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1 year ago
303225 1 year ago 9:00Underground coal mining | Extreme coal mining process
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7 years ago
259514 7 years ago 42:27Coal Mining Documentary - The Most Dangerous Job On Earth - Classic History
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6 months ago
408552 6 months ago 9:39How Do Coal Miners Go 4000 Feet Underground To Extract Coal Black Diamond? / Amazing Coal Mining
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2 years ago
1761697 2 years ago 36:03Asia’s biggest open cast coal mine tour | Coal mining process | Gevra, SECL coal mine Chhattisgarh
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1 year ago
355178 1 year ago 17:53How Modern Coal Mining Works with Bravus Mining & Resources
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4 years ago
77201 4 years ago 2:19Industrial Revolution: Coal Mining