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Season Finale

Japan's Top Inventions: Season 6

6x11 Home Water Purifiers / Plastic Valves

  • 2023-11-24T15:00:00Z on NHK WORLD-JAPAN
  • 28m
  • Japan
  • English
  • Documentary
The fascinating stories and secrets behind hit Japanese products, plus parts and machines that boast the top share of niche markets. This time: home water purifiers & plastic valves.
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