Industrial exhaust fan:
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Crusher
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Bottling plant
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Forklift truck moving away
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Work in a warehouse, general noise, loaders
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Grind metal on a grinding machine in a
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Dry cleaning
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Milling machine
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Automatic telephone switch
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Hydraulic pump
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Rattling, The atmosphere of the factory
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Electric industrial motor
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Turning on, Welding transformer, working,
★★★★★