spire welded pipe
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美
- 螺旋焊管
双语例句
- The diameter control is one of the important quality index for spiral welded steel pipes.
螺旋焊接钢管的直径控制是螺旋焊管生产的重要质量指标之一。 - A study concerning the feasibility of equipment for producing the inner ribbed spiral tubes with the existing pipe welding line is given.
分析了在现有焊管机组上生产内凸筋螺旋焊管的设备可行性。
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