
                                8 시즌
                                100 삽화
                            
Japan's Top Inventions - Season 2 Episode 5 에피소드 5
The behind-the-scenes tales of hit products and creations from Japan: this is Japan's Top Inventions. This time, a product used in over 20 countries and regions: stay-tight fasteners, nuts used with bolts in railroads, bridges, towers, and more. When normal nuts experience vibration, they sometimes come loose. But stay-tight fasteners, developed in Japan in 1974, overcame this problem. Learn the dramatic story behind the nuts, including a surprising spot that inspired their creation: a shrine!
- 년: 2025
- 국가: Japan
- 유형: Documentary
- 사진관: NHK WORLD-JAPAN
- 예어: invention, craftsmanship
- 감독:
- 캐스트:

 
                                    
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