... professioanl manufacture 2.ISO9001:2008 3.Size:3,6,10,13,19,25,38,50mm Inert Ceramic Ball of Size 3,6 ... ,10,13,19,25,38,50mm XINGFENG Catalyst bed support media 17% are the ... /cm3) 2.3-2.4 Free volume (%)40Operation temp.(max) (°C)1100Moh’s hardness (scale)>6.5Acid resistance (%)>99.6Alkali resistance ... )>5600>56 Inert Ceramic Ball of Size 3,6,10,13,19,25,38,50mm