Newspaper press:
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Print imprinted in cardboard, Notches
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Car factory
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Industrial exhaust fan
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Glass bottles on a conveyor line, room noise
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Brewing unit, mill for grinding grain
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Welding, Car factory, hammer knocking
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Conveyor, conveyor belt
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Welding transformer, working,, turning on
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Oil pump
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Mechanical lift
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Hydraulic pump
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Electric industrial motor
★★★★★