en-mbg2mn(MBMgAl2Mn)年级：en-mmggal2mn数量：en-mb21210分类：镁合金锭标准：en1753:1997镁和镁合金。镁合金锭和铸件en-mgmg2mn(MBMgAl2Mn)的化学成分%铁四锰镍铝铜锌别人-***大0.004***大0.05***小0.35***大0.0011.7-2。5***大0.008***大0。2总计0.01镁-剩余部分)