Sand is poured, screenings:
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Driving piles, Construction of buildings
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A circular saw
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Woodworking
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Concrete mixer
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Bobcat Loader Starts Up, Waits
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Open, close the lock, Tool box
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Air rivet gun
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Excavator approaching, jamming
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Jamming, Bulldozer approaching
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Electric surface grinding machine
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Bulldozer passing by
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Hammers, Construction of buildings, saws,
★★★★★