Linked from
The 8 pages that link to Ironmaking, each with the reason it gives.
Iron oreNarrower topic: Iron ore is the principal raw material for most primary ironmaking.
Blast furnaceNarrower topic: The blast furnace is a major route for converting ore into liquid iron.
HematiteRelated: Smelting reduces hematite to iron in blast furnaces.
Kryvyi RihRelated: Ironmaking converts the basin's processed ore into a material used by steelworks.