Ceramic rasching ring can stand up to corrosion of various inorganic acids, organic acids and organic solvents and so on. Ceramic Rasching Ring1. high mechanical strength 2. high chemical stability 3. excellent heat endurancePhysical parameter:Spec, mmD*H*T, mmSurface area, m²/m³Free volume, %Number per m³Bulk density, Kg/m³Dry Packing Factor, m-1Φ 66*6*15817526400005721377Φ 66*6* ...