| Answer | Crossword Clue |
|---|---|
| PIGIRON | Steel-making material |
| BESSEMER | Steel-making process |
| SLAG | Steel-making residue |
| BESSEMER | Method of making steel. |
| BESSEMER | Process for making steel. |
| SKELPS | Steel strips for making tubes. |
| SKELP | Strip of steel for making tubes. |
| BEECHBOTTOM | Steel-making town in West Virginia. |
| RUHR | River of Germany's steel-making region |
| BESSEMER | Inventor of a steel-making process |
| COBALT | Silvery white metal important in steel-making. |
