Последние добавленные видео:
white-damp
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7 years ago
389 7 years ago 3:05Detection of whitedamp
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6 years ago
13724 6 years ago 10:01White damp || Carbon monoxide gas || CO || खूनी गैस।
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78 4:15
White Damp
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7 years ago
655 7 years ago 6:06White damp || Carbon monaxide
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2 years ago
3865 2 years ago 14:52White damp (Carbon monoxide)- properties & Physiological effect
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4 years ago
320 4 years ago 7:01WHITEDAMP in COAL MINES.
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5 years ago
224 5 years ago 11:32GAS TESTING GT Ch 02 WHITE DAMP
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13 years ago
1001 13 years ago 1:40BlackDamp
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6 years ago
507 6 years ago 3:05|| Damp in mine || fire Damp, Black damp, White damp, Sting damp, After damp || for viva || By Ankit
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3 years ago
64 3 years ago 5:21Carbon Monoxide Gas || White Damp || CO || खूनी गैस।
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11 years ago
17737 11 years ago 3:14Damp survey; Mould or Efflorescent salts?
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7 years ago
458 7 years ago 2:23Stink damp - stink damp (h2s)
