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Season Finale

How It's Made: Season 4

4x13 Putty Knives, Garage Doors, Electric Motors, Wool
TV-G

  • 2005-03-30T02:00:00Z on Science
  • 21m
  • Canada
  • French, English
  • Documentary
This episode demonstrates the production processes for putty knives, garage doors, electric motors and wool, and shows how each is made.
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