Grind wood with a grinder, noise in production:
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Gas welding
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Start, Compressor, shutdown, run
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Steam pump
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Forklift raises, lowers forks
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Welding transformer, working,, turning on
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Automatic folder
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Hydraulic down machine
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Welding, Car factory, hammer knocking
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Welding transformer operation under load
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Circular knitting machine
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Hydraulic pump
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Breakdown press
★★★★★