• Germanium oxide dust produced in Guizhou and Yunnan province contains mainly valuable metals of zinc, lead, germanium and silver.

    贵州云南烟尘主要、锗、银等有价金属

    youdao

  • Germanium oxide dust produced in Guizhou and Yunnan province contains mainly valuable metals of zinc, lead, germanium and silver.

    贵州云南烟尘主要、锗、银等有价金属

    youdao

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