玉たま鋼はがね

noun

tamahagane; traditional Japanese steel made from iron sand

High-carbon steel produced in a tatara furnace, prized for sword-making and edged tools.

• 日本にほん刀とうは玉たま鋼はがねから作つくられる。

  Japanese swords are made from tamahagane.

• 玉たま鋼はがねは砂さ鉄てつを原げん料りょうとする伝でん統とう的てきな鋼こうだ。

  Tamahagane is a traditional steel made from iron sand.