金属钐金属钐产品质量标准：    元素       产品Sm-1    产品Sm-2     TREM      ≥99.5%        ≥99.5%     Sm/TREM   ≥99.9%        ≥99.99%     Pr          ≤0.01%        ≤0.001%     Nd         ≤0.02%        ≤0.002%     Eu         ≤0.02%        ≤0.003%     Gd         ≤0.01%        ≤0.001%     Other RE    ≤0.04%        ≤0.003%     Fe          ≤0.02%        ≤0.02%     Si          ≤0.005%        ≤0.005%     Ca          ≤0.005%       ≤0.005%     Mg         ≤0.005%        ≤0.005%     Al          ≤0.02%         ≤0.02%     C           ≤0.02%         ≤0.02%     O           ≤0.02%         ≤0.02%形状：金属锭，机械抛光，每块大小可按您的要求。包装：铁桶封装，塑料内袋、真空充氩气，50 Kg/每桶或100KG/桶。