Machine engine gaining momentum:
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Car factory, welding, hammer knocking
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Forklift drives by
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Electric welding
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Circular knitting machine
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Printing press
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Heidelberian sorting printer
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Factory atmosphere, drone in a mine tunnel
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Working machine engine
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Lithographic press
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Spinning machine
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Work, start, jamming, Generator
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Signal for lunch at the factory
★★★★★