• 介绍了双焊缝矩形钢管生产技术特点冷弯等边槽钢孔型设计参数

    This paper introduces the producing and technology characteristics of the square and rectangular double-welded seam pipe. And designing of the pass parameters of the cold-bent channel steel.

    youdao

  • 介绍了双焊缝矩形钢管生产技术特点冷弯等边槽钢孔型设计参数

    This paper introduces the producing and technology characteristics of the square and rectangular double-welded seam pipe. And designing of the pass parameters of the cold-bent channel steel.

    youdao

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