| Answer | Crossword Clue |
|---|---|
| tapholes | TAPHOLE, a hole in a blast furnace |
| taphole | a hole in a blast furnace |
| tapholes | hole in a blast furnace, steelmaking furnace, etc., through which molten metal or slag is tapped off |
| taphole | hole in a blast furnace, steelmaking furnace, etc., through which molten metal or slag is tapped off |
| SMELT | Heat in a blast furnace |
| blow | to begin operations in (a blast furnace) |
| blow | to blow down and clean (a blast furnace) in order to shut down |
