Gas welding:
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Notches, print imprinted in cardboard
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Book press
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Lathe turning on, work, stop
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Hydraulic down machine
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Newspaper press
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Hammer knocking, Car factory, welding
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Welding transformer operation under load
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Electric industrial motor
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Standby, on, Forklift, off
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Rattling, The atmosphere of the factory
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Forklift truck moving away
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Circular knitting machine
★★★★★