Why Japanese steel sparks like sparkler during the swords making? #katana #swords #fireworks
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Tatara iron making & mini Katana forging experience in Seki City, Japan 🇯🇵. #Tatara #Katana
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Why It‘s difficult to cut things by Japanese swords. #katana #swords
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Por que proteger tanques está se tornando muito mais difícil
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How Japanese Masters Forge Swords from Sand
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Japan's rarest precious steel, the Tamahagane handcrafted by HIRATA SWORD SMITH | injapanstories
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How I Mass Produced Potassium Metal In The Backyard
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