... professioanl manufacture 2.ISO9001:2008 3.Size:3,6,10,13,19,25,38,50mm Inert Ceramic Ball of Size 3,6,10,13,19,25, ... , This makes them all ideal choice for support of all types of catalyst. Chemical composition Al2O3+SiO2Al2O3Fe2O3MgOK2O+Na2O +CaOOther> ... (scale)>6.5Acid resistance (%)>99.6Alkali resistance (%)>85 Size available & Crush strength SizeCrush strengthKg/particleKN/particle1/8''(3mm ...