Didymium or praseodymium-neodymium alloy Properties：a rare earth alloy with a metallic silver luster Purity:（Pr+Nd)/TREM ≥ 99.5% Specifications：1) Pr/TREM:(20±1.5)%，Nd/TREM:(80±1.5)% 2) Pr/TREM:(25±1.5)%，Nd/TREM:(75±1.5)% Packing: In iron drums with inner double PVC bags of 100kg net each, or packed according to customers' specifications.