... and competitive price 3) Annual output: 20000MT1) manganese oxide 60% to 99% 2) Professional services and competitive price ... 3) Annual output: 20000MTsupply high quality manganese oxide with competition price!Uses:material of ferrite, drier of ... grease, ceramic and battery.Technical specification: Index nameIndex Manganese oxide(MnO),%60627077809099Mn ,%46485460627076H2O ,% ≤0.50.50.50.50 ...