Knocking hammer indoors, the sounds of the environment outside the window:
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Electric hand grinder
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Vibratory grinding machine
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Wood lathe
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Open, Tool box, close the lid
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Construction, end of pouring, cement loading
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The destruction of the building by the core
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Excavator digs a hole
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Construction of buildings, saws,, hammers
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Construction of the road, clean the old
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Hammer hammering a nail into a tree
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Crackling, Bulldozer rides through the woods
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Bobcat loader approaching, jamming
★★★★★