Small centrifuge:
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Small centrifuge
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Hammer knocking, welding, Car factory
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Welding transformer operation under load
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Electric generator (hum)
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Forklift truck moving away
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Power Plant Water Pumps
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Power station generator
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Electric welding
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Forklift approaching
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Grind metal on a grinding machine in a
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Working,, turning on, Welding transformer
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Room noise, Glass bottles on a conveyor line
★★★★★