• This is the submerged arc welding, a commonly used welding method that can in an hour deposit weld metal equal in weight to that of the operator himself.

    弧焊常用焊接方法小时内金属可以等于操作者本身的重量

    youdao

  • This is the submerged arc welding, a commonly used welding method that can in an hour deposit weld metal equal in weight to that of the operator himself.

    弧焊常用焊接方法小时内金属可以等于操作者本身的重量

    youdao

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