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How Do They Do It?: Season 15

15x07 Ballpoint Pens, Pizza, Reed Rugs
TV-G

  • 2018-11-26T03:00:00Z on Discovery
  • 22m
  • United States
  • English
  • Documentary
How do they make some world's smoothest writing ballpoint pens that don't leak or fade? And, how do they make pizza for soldiers on the frontline?
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