Forklift, on, standby, off:
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Dry cleaning
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Brewing unit, mill for grinding grain
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Forklift in motion
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Loaders, general noise, Work in a warehouse
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Car factory
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Welding transformer, turning on, working,
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Glass bottles on a conveyor line, room noise
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Power station turbine
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Grind metal on a grinding machine in a
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Electric generator (hum)
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Welding transformer operation under load
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Newspaper press
★★★★★