• According to the historical materials, the famous Gejiu Sn deposit was first exploited for Ag(Pb) Zn ore at Yindongkuang of Laochang orefield in 1290.

    著名个旧锡矿,史料廿七年(12 90年) ,率先在老厂矿区银铜矿开始采银(锌矿

    youdao

  • According to the historical materials, the famous Gejiu Sn deposit was first exploited for Ag(Pb) Zn ore at Yindongkuang of Laochang orefield in 1290.

    著名个旧锡矿,史料廿七年(12 90年) ,率先在老厂矿区银铜矿开始采银(锌矿

    youdao

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