Hydraulic machine up:
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Work, stop, Lathe turning on
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Gas welding
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Rattling, The atmosphere of the factory
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Forklift raises, lowers forks
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Welding transformer operation under load
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Forklift truck moving away
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Bottling plant
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Car factory
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Milling machine
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Machine engine gaining momentum
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Brewing unit, fluid drilling
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Automatic telephone switch
★★★★★