• A heat-resistant compacted graphite iron has been produced by using RE composite vermiculate ferroalloy which contains low boil element.

    采用稀土为主的沸点元素的化剂生产耐热铸铁

    youdao

  • A heat-resistant compacted graphite iron has been produced by using RE composite vermiculate ferroalloy which contains low boil element.

    采用稀土为主的沸点元素的化剂生产耐热铸铁

    youdao

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