After heat cyclization, it exhibits {HEAD ~ a heat resistance} of {TAIL ~ 400° C.} or above 
of
After heat cyclization , it exhibits { HEAD ~ a heat resistance } of { TAIL ~ 400 ° C. } or above
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH