Car factory:
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Electric generator (hum)
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Car factory, hammer knocking, welding
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Automatic folder
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Vibrosieve at the factory
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Low frequency running engine
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Forklift truck moving away
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Electric industrial motor
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Letter press
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Forklift, standby, off, on
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Welding transformer, turning on, working,
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Spinning machine
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Print imprinted in cardboard, Notches
★★★★★