Upon attainment of the desired temperature level, a selected quantity of the reducing agent is introduced into {HEAD ~ the chamber} for producing a reducing atmosphere during the maturing of {TAIL ~ the ceramic ware} 
Upon attainment of the desired temperature level , a selected quantity of the reducing agent is introduced into { HEAD ~ the chamber } for producing a reducing atmosphere during the maturing of { TAIL ~ the ceramic ware }
OTH OTH OTH OTH 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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL