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