Car factory, welding, hammer knocking:
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Noise in, Grind wood with a grinder
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Postal sorting line
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Industrial exhaust fan
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Welding transformer operation under load
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Start, shutdown, Compressor, run
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Working,, turning on, Welding transformer
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Conveyor belt, Conveyor
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General noise, Factory work
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Bottling plant
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Compressor industry
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Gas welding
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Electric welding
★★★★★