Conveyor, conveyor belt:
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Automatic folder
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Compressor industry
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Electric welding
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Circular knitting machine
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Room noise, Glass bottles on a conveyor line
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Hammer knocking, welding, Car factory
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Factory work, general noise
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Brewing unit, mill for grinding grain
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Oil pump
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Milling machine
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Newspaper press
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Work, jamming, Generator, start
★★★★★