| Clue | Source | Date |
|---|---|---|
| Joining two pieces of metal by fusion (7) | ||
| Fabrication process poorly led in side of building (7) | ||
| Fabrication process (7) | ||
| Joining by fusing (7) | ||
| Joining by fusing | The Telegraph Quick | 07 Jan 2024 |
| Construction site job | Wall Street Journal | 25 Jul 2017 |
| Using an acetylene torch | ||
| Using a blowtorch | ||
| One of the trades |