Bulldozer approaching, jamming:
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Floor polisher
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Bobcat loader starts up, waits, shuts down
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End of pouring, cement loading, Construction
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Construction, loading of cement, the
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Excavator starts up, expects to be jammed
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Bobcat loader works, loads
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Excavator approaching, jamming
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Digging in the tool box
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Air rivet gun
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Bulldozer moving
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Laying,, skating rink, Road construction
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Grinder
★★★★★