Notches, print imprinted in cardboard:
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General noise, Factory work
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Brewing unit, fluid drilling
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Heidelberian sorting printer
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Hydraulic down machine
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Room noise, Glass bottles on a conveyor line
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Welding transformer operation under load
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Rattling, The atmosphere of the factory
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Stitching machine
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Book press
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Letter press
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Machine engine gaining momentum
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Hydraulic pump
★★★★★