Car factory, welding, hammer knocking:
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Drone in a mine tunnel, Factory atmosphere
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Electric generator (hum)
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General noise, Factory work
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Factory Atmosphere
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Low frequency running engine
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Grind metal on a grinding machine in a
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Brewing unit, mill for grinding grain
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Hydraulic pump
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Air compressor, air blow
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Spinning machine
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Glass bottles on a conveyor line, room noise
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Brewing unit, fluid drilling
★★★★★