{TAIL ~ Chemical composition} of {HEAD ~ binders} has not been taken into account where, in this invention, Si/Al elemental ratios are referred to 
{ TAIL ~ Chemical composition } of { HEAD ~ binders } has not been taken into account where , in this invention , Si / Al elemental ratios are referred to
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH