海かい綿めん鉄てつ

noun

sponge iron; direct reduced iron; DRI

Technical term in metallurgy for porous iron produced by direct reduction of iron ore without melting.

• 海かい綿めん鉄てつは、直ちょく接せつ還かん元げん法ほうで製せい造ぞうされる多た孔こう質しつの鉄てつである。

  Sponge iron is porous iron produced by the direct reduction process.