Book press:
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Printing press
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Grind metal on a grinding machine in a
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Compressor, shutdown, run, start
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Air blow, Air compressor
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Hammer knocking, welding, Car factory
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Gas welding
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Industrial exhaust fan
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Hydraulic activator
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Signal for lunch at the factory
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The atmosphere of the factory, rattling
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Hydraulic pump
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Postal sorting line
★★★★★