Knocking a hammer indoors with an echo:
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Construction, destruction of glass and
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Construction of the road, clean the old
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Road construction, jackhammer
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Excavator digs a hole
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Digging in the tool box
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Driving piles, Construction of buildings
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Excavator approaching, jamming
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Electric surface grinding machine
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The destruction of the building with a
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Fine Emery, Sandpaper
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Wood lathe
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Bulldozer working
★★★★★