Floor polisher:
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A circular saw
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Cutting machine
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Tool belt thrown to the ground
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Manual ratchet, tightening the nut, loosening
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Drum rotation, Construction, cement loading
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Excavator digs a hole
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Compressor, start, Build, shutdown, run
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Laying,, Road construction, skating rink
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Electric machine grinder
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Construction, concrete processing
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Hammers, Construction of buildings, saws,
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Reverb sawing, Hacksaw
★★★★★