Crane:
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Truck crane works
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Jackhammer, Road construction
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Skating rink, Road construction, laying,
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A circular saw
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Circular Saw Blade Closing
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Electric polished marble
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Tool box dragged across the floor
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Bobcat loader starts up, waits, shuts down
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Vise make clamp
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Construction, concrete processing
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Excavator digs a hole
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Tightening the nut, Manual ratchet, loosening
★★★★★