久久精品免费视频182_国产99爱在线视频免费观看_无码专区一va亚洲天堂_中文毛片无遮挡高潮免5费

Praseodymium neodymium oxide
Praseodymium neodymium oxide
Detail
Molecular formula: (Pr+Nd) 2O3
Appearance: dark green powder
Total rare earth: 99%
Purity: 75 + 25%
Packing: 50KG/ drum or woven bag packaging
Praseodymium neodymium oxide for the production of praseodymium neodymium metal, NdFeB permanent magnet materials, colorants, chemical additives, etc.......
Scan QR codeClose