| Answer | Crossword Clue |
|---|---|
| TIN | Solder metal |
| TIN | Metal in solder. |
| TIN | Metal in solder |
| blowtorch | A portable device producing a hot flame that is directed onto a surface, typically to solder metal |
| blowtorches | A portable device producing a hot flame that is directed onto a surface, typically to solder metal |
| autogenous | (of welding) Done either without solder or with a filler of the same metal as the pieces being welded |
