| |||
| mechanical ash discharger; mechanical grate; mechanical stoker | |||
|
focolare automatico : 3 phrases in 2 subjects |
| Mechanic engineering | 2 |
| Metallurgy | 1 |
| |||
| mechanical ash discharger; mechanical grate; mechanical stoker | |||
|
focolare automatico : 3 phrases in 2 subjects |
| Mechanic engineering | 2 |
| Metallurgy | 1 |