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| TIG-welding; tungsten-arc inert-gas welding | |||
| сварка вольфрамовым электродом в среде защитного газа дуговая: 8 phrases in 5 subjects |
| Metallurgy | 2 |
| Pipelines | 1 |
| Technology | 1 |
| Tengiz | 1 |
| Welding | 3 |
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