... .8-1.5,1-1.8,1-2, 2-3, 2.5-3, 2-4, 4-8, 8-16mm Good quality, Relative ... .8-1.5,1-1.8,1-2, 2-3, 2.5-3, 2-4, 4-8, 8-16mmGood quality,Relative competitive ... ResultWear Rate≤0.05%Specific Density2.5t/mm3Ash Percent≤0.3%Bulk Density0.92t/mm3Breakage Rate≤0.07%Impurity≥80%Voidage ...