Crane:
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Tin snips
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Expects to be jammed, Excavator starts up
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Start, compressor, run, shutdown, Build
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Hammering a brick wall
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Construction of the road, clean the old
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Concrete mixer
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Sawing
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Road construction, jackhammer
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Tightening the nut, loosening, Manual ratchet
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Construction of buildings, driving piles
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Hammer hammering a nail into a tree
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Electric surface grinding machine
★★★★★