{HEAD ~ The secondary ingredients} comprise 0.02 0.10 wt % part SiO2 and 0.01 0.03 wt part Al2 O3 with {TAIL ~ respect} to 100 wt parts of the primary ingredients, with the weight ratio of SiO2 to Al2 O3 being from 1.5 to 5.0 
{ HEAD ~ The secondary ingredients } comprise 0.02 0.10 wt % part SiO2 and 0.01 0.03 wt part Al2 O3 with { TAIL ~ respect } to 100 wt parts of the primary ingredients , with the weight ratio of SiO2 to Al2 O3 being from 1.5 to 5.0
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH