... 3.ISO 9001:2008 4.Acid resisitance(%):>99.6% Hardness-9.5 Grinding Ceramic Ball, Inert White Alumina BallsProfessional manufacturer & ... ,9,13,19,25,38,50MMVODA Inert Ceramic Ball for Support Media Introduction: Catalyst bed support media are widely used ... (%)<1<1<1<1<1CaO (%)<0.5<1.5<2<40.2MgO (%)<0.5<2.5<0.5<0.50.1K2O + Na2O (%)<4< ... inch (38mm)>8.52>8.92>5.33>5.28>82 inch (50mm)>9.7>9.8>6.22>8>15 Sample ...