• The results showed that the lanthanum rare earth alloy could be used as a new type of modifying agent for high-strength gray iron and vermicular cast iron.

    结果表明稀土合金做为高强度铸铁墨铸铁一种新型变质

    youdao

  • The results showed that the lanthanum rare earth alloy could be used as a new type of modifying agent for high-strength gray iron and vermicular cast iron.

    结果表明稀土合金做为高强度铸铁墨铸铁一种新型变质

    youdao

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