• The project position of welder qualification test for long transporting pipe depends on vertical down welding basically, which is namely fixed pipe with axis horizontal welding (5gx).

    管道焊工考试项目位置基本向下为主,水平固定全位置焊(5gx)。

    youdao

  • The project position of welder qualification test for long transporting pipe depends on vertical down welding basically, which is namely fixed pipe with axis horizontal welding (5gx).

    管道焊工考试项目位置基本向下为主,水平固定全位置焊(5gx)。

    youdao

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