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| furnace butt-welding process (【技】将焊管坯在加热炉加热，然后通过焊管模或成型焊接机受压成型并焊接成钢管的方法。炉焊管主要用于水、煤气的运输和暖气系统，也可用于结构件。) | |||
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炉焊管法 : 5 phrases in 2 subjects |
| Metallurgy | 4 |
| Technology | 1 |
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