Furthermore, if the retainer 11 in directly welded to the opening edge, it is possible to prevent water from entering the gap between {HEAD ~ the opening edge} 10 and {TAIL ~ a retainer} 11 
Furthermore , if the retainer 11 in directly welded to the opening edge , it is possible to prevent water from entering the gap between { HEAD ~ the opening edge } 10 and { TAIL ~ a retainer } 11
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH