Signal for lunch at the factory:
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Factory atmosphere, drone in a mine tunnel
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Notches, print imprinted in cardboard
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Glass bottles on a conveyor line, room noise
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General noise, Work in a warehouse, loaders
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Forklift in motion
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Car factory
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Forklift raises, lowers forks
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Factory Atmosphere
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Hydraulic down machine
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Bottling plant
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Industrial exhaust fan
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Power station turbine
★★★★★