As described above, {HEAD ~ the cover} 43 is provided over {TAIL ~ the entire circumferential end edge} with a base attachment piece 432 U shaped in cross section 
is provided over
As described above , { HEAD ~ the cover } 43 is provided over { TAIL ~ the entire circumferential end edge } with a base attachment piece 432 U shaped in cross section
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH