相關專欄
鍛造・研磨技術日本刀の日常メンテナンスと長期保存実務——油・打粉・保管環境の実践マニュアル
鍛造・研磨技術Blade Edge Angle and Polishing: Designing the Sharp Edge that Balances Cutting Performance and Durability in Nihonto
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日本刀×日本文化体験
観光スポットと刀剣文化をつなぐ多言語展開。