... TERBIUM OXIDE SPECIFICATIONS: FORMULA:Tb4O7 CODETREO min %Tb4O7/TREO min %L.O.I.(10000C 1h) max % Non-RE impurities max (ppm) ... .PACKING:Plastic drums: 5kgs net each. Company Profile Sichuan lanthanum rare earth Materials Co., Ltd. is located in Chengdu, ... Pr-Nd alloy, praseodymium, neodymium and dysprosium alloys, metal lanthanum, low iron, low magnesium mixed rare earth alloy, magnetic materials ...