Gas welding:
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Conveyor belt, Conveyor
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Steam pump
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Noise in, Grind wood with a grinder
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Gas welding
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Bottling plant
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Factory atmosphere, drone in a mine tunnel
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Notches, print imprinted in cardboard
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Stitching machine
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Dry cleaning
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Forklift, off, on, standby
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General noise, loaders, Work in a warehouse
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Machine engine gaining momentum
★★★★★