SUTALOX1.Low pressure drop, 2.high efficiency , 3.large effective interfacial area , 4.high mechanical strength. 5.low cost Packing SizeBulk Densitykg/m3Bulk Quantitypcs/m3Specific Aream2/m3Void% 16#320315,000270 94 25#26013,50023096 40#27150,14015097 50#23514,70012098 70#1984,700 87 99