Spheroidal alumina particles have a combination of high macroporosity, surface area, {TAIL ~ crush strength} and low attrition loss and {HEAD ~ bulk density} 
Spheroidal alumina particles have a combination of high macroporosity , surface area , { TAIL ~ crush strength } and low attrition loss and { HEAD ~ bulk density }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD