Letter press:
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Letter press
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Room noise, Glass bottles on a conveyor line
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Power station turbine
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Work, start, Generator, jamming
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Low frequency running engine
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Spinning machine
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The atmosphere of the factory, rattling
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Working machine engine
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Car factory, welding, hammer knocking
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Print imprinted in cardboard, Notches
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Hydraulic pump
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Circular knitting machine
★★★★★