Circular knitting machine:
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Signal for lunch at the factory
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Hydraulic activator
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Noise in, Grind wood with a grinder
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Off, Forklift, on, standby
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Milling machine
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General noise, loaders, Work in a warehouse
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Stop, Lathe turning on, work
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Electric welding
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Air compressor, air blow
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Forklift in motion
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Forklift drives by
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Drone in a mine tunnel, Factory atmosphere
★★★★★