9mm 10mm 11mm 12mm 13mm High Precision Solid Glass Ball
High Precision Solid Clear Glass Balls Glass Beads Shape Solid Ball Color Colorless Transparent Mohs Hardness 7 HRC hardness 46 Real Density 2.5g/cm3 Bulk Density 1.5g/cm3 Si02 70.2% Na20 12.5% Ca0 9.0% Mg0 3.6% Al203 3.8% Fe203 0.1% K2O 0.4% Packing 25kg per bag Size: 20 30 40 50 60 70 80 100 120 140 150 170