en-mamal3zn1(en-ma21130)年级：en-mamal3zn1数量：en-ma21130分类：镁合金阳极铸件标准：en12438:1998镁和镁合金。铸造阳极用镁合金en-mamal3zn1级化学成分%(en-ma21130)铁四锰镍铝铜锌别人-***大0.02***大0。30.2:1***大0.0022.5-3。5***大0.050.6-1。4每0.05;镁-余数;as+sb+pb+cr+ni<0.1;cd+hhg+se<0.01)