Mighty machines. Diggers & dozers [videorecording] / Seville Pictures ; produced in association with TFO-TVOntario and Knowledge Network ; with the participation of The Canadian Film or Video Tax Credit and the government of Ontario.
Title from disc surface. Bonus: 4 five-minute episodes.
Contents:
At the rock quarry. At the demolition site -- At the rock quarry.
Summary:
Building, blasting and crushing! It's all in a day's work for front-end loaders, diggers and dozers! Huge shovels dig foundations, a towering crane builds a skyscraper, dynamite sends a smokestack crumbling to the ground, and a colossal crusher grinds up rock.
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