... -70mm Application: concrete, building, ballmill. AL2O3: 95%, 92%, 75%, 68% industrial construction alumina ball : The Products, featured by high hardness, high ... ) 1020 30405060,70Production Capacity: 1200Ton/MonthPackage: 25kg/plastic bag 1ton/pallet 24ton/1*20’’ containerDelivery time:10 days for 24tonPrice: FOB ...