After curing, {HEAD ~ the roller} is baked, which oxidizes {TAIL ~ the outer surface} 
oxidizes
After curing , { HEAD ~ the roller } is baked , which oxidizes { TAIL ~ the outer surface }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL