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| 护弧电焊条; 造气药皮焊条; 形成气体药皮焊条; 造气药皮焊条形成气体药皮焊条 | |||
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электрод с газообразующим покрытием : 4 phrases in 2 subjects |
| General | 1 |
| Technology | 3 |
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