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