• It is also known to use a heat-resistant mineral material, for example, asbestos in the form of cord or sheet to support the weld pool and the powder covering in the case of a submerged arc.

    被称为使用耐热性矿物材料例如石棉形式脊髓资产负债表支持粉末覆盖情况下弧焊

    youdao

  • It is also known to use a heat-resistant mineral material, for example, asbestos in the form of cord or sheet to support the weld pool and the powder covering in the case of a submerged arc.

    被称为使用耐热性矿物材料例如石棉形式脊髓资产负债表支持粉末覆盖情况下弧焊

    youdao

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