Advantageously, by controlling the amount of reducing agent inserted during this step, {HEAD ~ a reducing} and then reoxidizing atmosphere can occur in order to produce {TAIL ~ certain desirable glaze effects} 
Advantageously , by controlling the amount of reducing agent inserted during this step , { HEAD ~ a reducing } and then reoxidizing atmosphere can occur in order to produce { TAIL ~ certain desirable glaze effects }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL