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casting iron : 62 phrases in 12 subjects |
| Automobiles | 5 |
| Bridge construction | 3 |
| Chemistry | 1 |
| Compressors | 5 |
| Engineering geology | 2 |
| General | 1 |
| Mechanics | 1 |
| Metallurgy | 28 |
| Nautical | 4 |
| Shipbuilding | 2 |
| Technology | 8 |
| Wind Energy | 2 |
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