Factory atmosphere, drone in a mine tunnel:
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Print imprinted in cardboard, Notches
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Brewing unit, fluid drilling
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Forklift in motion
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Working machine engine
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Electric industrial motor
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Air compressor turn on, turn off
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Automatic telephone switch
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Small centrifuge
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Spinning machine
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Bottling plant
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Mechanical lift
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Work in a warehouse, general noise, loaders
★★★★★