noun
iron and steel
Industry term referring to iron and steel collectively, often used in contexts like 鉄鋼業 (steel industry) or 鉄鋼製品 (steel products).
日本は鉄鋼の生産量が多い。
Japan produces a large amount of iron and steel.
鉄鋼業は重要な基幹産業だ。
The steel industry is an important key industry.