素延べと火造り,Katana making(2)
刃金、皮金、心金（芯金）を組み合わせ鍛接した塊をバランスが 崩れない様に細心の注意を払いながら延ばしていきます。 所定の長さになったら刃を打ち出して刀の形にしていきます。
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