Small centrifuge:
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Lithographic press
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Hydraulic pump
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Power Plant Water Pumps
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Heidelberian sorting printer
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Print imprinted in cardboard, Notches
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Printing press
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Lathe turning on, stop, work
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Signal for lunch at the factory
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Air blow, Air compressor
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Mechanical lift
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Welding transformer operation under load
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Electric generator (hum)
★★★★★