Crusher:
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Stop, work, Lathe turning on
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Gas welding
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Postal sorting line
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Breakdown press
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Low frequency running engine
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Box making machine
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Electric welding
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Newspaper press
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Compressor, start, run, shutdown
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Work in a warehouse, loaders, general noise
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Robotic assembly line
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Room noise, Glass bottles on a conveyor line
★★★★★