en-MBMgAl9Zn1(A)(en-mb21120)年级：en-MBMgAl9Zn1(A)数量：en-mb21120分类：镁合金锭标准：en1753:1997镁和镁合金。镁合金锭和铸件MBMgAl9Zn1(A级的化学成分%(en-mb21120)铁四锰镍铝铜锌别人-***大0.004***大0.05***小0.17***大0.0018.5-9。5***大0.250.45-0。9总计0.01镁-剩余部分)