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How Do They Do It?: Season 12

12x06 Road Rollers; Canned Bread; Vertu Phones
TV-G

  • 2015-06-12T02:00:00Z on Discovery
  • 22m
  • United States
  • English
  • Documentary
The powerful machines essential to building roads and highways are made; No pans are needed when you can bake bread in a can; Luxurious cell phones are made with rubies and sapphires.
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