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