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).
Japan produces a large amount of iron and steel.
The steel industry is an important key industry.
This factory produces one million tons of steel a year.
Demand for steel is rising in the construction industry.
Steel prices rose due to increased raw material costs.