 |
| iron bars: 95 phrases in 21 subjects |
| Automated equipment | 3 |
| Automobiles | 2 |
| Bridge construction | 4 |
| Construction | 12 |
| Drilling | 2 |
| General | 23 |
| Heraldry | 4 |
| Makarov | 9 |
| Mechanic engineering | 12 |
| Mechanics | 1 |
| Metallurgy | 2 |
| Military | 1 |
| Music | 1 |
| Nautical | 3 |
| Oil / petroleum | 1 |
| Road works | 1 |
| Roll stock | 3 |
| Seismology | 2 |
| Shipbuilding | 1 |
| Technology | 4 |
| Transport | 4 |