Concrete mixer:
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Waits, Bobcat Loader Starts Up
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Leaves, The bulldozer starts
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Floor polisher
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Hammer and chisel, blows on concrete
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Jackhammer, Road construction
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Loading of cement, the, Construction
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Excavator, engine noise
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Sawing, Hacksaw
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Bobcat loader starts up, shuts down, waits
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Loosening, tightening the nut, Manual ratchet
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Vise make clamp
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Close the lock, open, Tool box
★★★★★