Canary used for testing for carbon monoxide 1926 US Bureau of Mines markdcatlin 0:52 11 years ago 36 184 Скачать Далее
Carbon Monoxide Death in an Underground Copper Mine 1973 markdcatlin 1:15 15 years ago 9 706 Скачать Далее
Coal mine accident: six die after gas leak in Spain News Direct 0:35 10 years ago 7 400 Скачать Далее
Webinar: Mine gas - odourless, colourless, dangerous The Coal Authority 39:23 7 years ago 2 792 Скачать Далее
Coal Mine Gases, Types, Important Points, Best Explantion in Hindi By Mining papa Mining Papa 20:13 3 years ago 52 927 Скачать Далее
Underground Drilling and Blasting Training Video - ACG Australian Centre for Geomechanics 3:08 11 years ago 905 536 Скачать Далее
EXCLUSIVE: CCTV footage from Soma mining disaster - BBC News BBC News 1:46 9 years ago 141 308 Скачать Далее
How Quickly Can A Coal Mine Kill? UK Abandoned Mine Explore. UK Abandoned Mine Explores 4:18 2 years ago 12 603 Скачать Далее
Properties of Methane Gas in gases environment , confine space, underground coal mines Health & Safety H & S 1:26 5 years ago 862 Скачать Далее