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Aritsugu Ao-ko Hongasumi
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| Aritsugu alternates four layers of ao-ko (‘blue steel’ - highest quality carbon steel created by adding chromium and tungsten to shiro-ko ‘white steel’) carbon steel with four layers of soft iron which creates beautiful wavy patterns on the blades of these knives. Combining the two materials gives these knives an excellent duration of sharpness and strong nick-resistance. All knives include saya covers. |
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