Construction, digging, bulldozer:
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Hammers, saws,, Construction of buildings
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Excavator starts, leaves
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Electric surface grinding machine
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Bulldozer rides through the woods, crackling
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Bulldozer passing by
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Electric polished marble
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Bulldozer moving
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Waits, shuts down, Bobcat loader starts up
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Screwdriver
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Tin snips
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Truck crane works
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Jamming, Excavator approaching
★★★★★