The flanged portion 15c is provided with not shown through {TAIL ~ holes} for inserting the bolts 12a of {HEAD ~ the aforementioned retainer} 12 therethrough 
The flanged portion 15c is provided with not shown through { TAIL ~ holes } for inserting the bolts 12a of { HEAD ~ the aforementioned retainer } 12 therethrough
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH