製鉄

1. Origins, structure, and basic meaning

• Structure: 製鉄 is read as せいてつ and means “ironmaking” and “steel production”.
• Basic usage: It appears in learning historical ironmaking techniques and naming a town’s main industry.

2. Common pitfalls and similar expressions

• 製鉄技術 / 製鉄が主要な産業
  • Use 製鉄技術 for the technical field and 製鉄が主要な産業 for the industrial activity.