99% High Alumina Ball for Ethylene Dryers 1.20 years professional manufacture 2.ISO9001:2008 3.size:3 ... ,6,10,13,19,25,38,50mm 99% High ... equipment or foul the catalyst bed.The XINGFENG 99% High Alumina Support Media has very excellent thermal ... equilibration media. Chemical composition Al2O3Fe2O3MgOSiO2Na2OTiO2>99%<0.1%<0.5%<0.2%<0.05%<0.05% Physical ...