stacking {HEAD ~ a third adhesive} which is {TAIL ~ a thermosetting medium temperature hardening epoxy resin}, on the second adhesive and thereafter performing a vacuum shaping process; and 
is
stacking { HEAD ~ a third adhesive } which is { TAIL ~ a thermosetting medium temperature hardening epoxy resin } , on the second adhesive and thereafter performing a vacuum shaping process ; and
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH