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凄過ぎる日本企業の技術力

日本のボールペンが精密技術で高級ブランドより人気の海外の反応

ボールペン用微細バネのミクロ発條は世界のトップクラス。 というから驚き!! 細かい仕事や寸分と狂うことのない製品には、 器用な日本の技術は欠かせないと言われています。 まして、ボールペンに使用されている微細な 部品のバネ等の製造は、他の国に...