Crane:
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Close the lock, open, Tool box
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Removing a nail from a tree
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Driving piles,, Construction of buildings
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Hammer and chisel, blows on concrete
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Sand is poured, screenings
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Electric hand grinder
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Floor polisher
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Screwdriver screwing a screw into a tree
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Bulldozer moving
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Excavator approaching, jamming
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Electric polished marble
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Planer, manual planing
★★★★★