NAGAHAMA, Shiga -- A fireworks manufacturer in this western Japan city has spent about eight years jointly developing fireworks with outer shells that dissolve quickly in water and return to nature, ...
Hiroyuki Kakinoki, left, president of Kakinoki Hanabi Kogyo, holds up the shell of the newly developed firework with professor Takahiko Nakaoki of Ryukoku University at the Nagahama Chamber of ...
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