1. 50kg per bag 2. MnO2 content 30%-54% 3. average particle Manganese ore: Size: 0.4-0.6mm,0.6-1.2mm,1-2mm,2-4mm,4-8mm,8-16mm,16-32mm;Density: 2.66g/cm3Broken rate: ≤1.0%Pile density: 1.85g/cm3bruse rate: ≤1.0%Dust content: ≤ 2.5%MnO2 content: 30-40%Package: 50 kg/ bag;