en-mcmy4re3zr(enmc95320)年级：en-cmgy4re3zr数量：en-mc95320分类：镁合金铸件标准：en1753:1997镁和镁合金。镁合金锭和铸件e-MCMgY4RE3Zr级化学成分%(en-mc95320)铁四锰镍铜锆re锌李Y别人-***大0.01***大0.01***大0.15***大0.005***大0.030.4-12.4-4。4***大0。2***大0。23.7-4。3总计0.01镁-剩余部分)