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borewell
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8 months ago
9440 8 months ago 9:57How Borewell Machine DTH (Down The Hole Drilling) Rigs Works - 3D Animation
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7068507 4 years ago 12:12Incredible Modern Borewell Drilling Machines I Never Seen, Extreme Ingenious Construction Workers
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799451 2 months ago 58:12Incredible 199F Deep Borewell Drilling Process/Amazing installation Water Pump For Crop Irrigation