{TAIL ~ The outer edge portion} 7 is mounted on the cylindrical portion 1A of {HEAD ~ the casing} 1 through bolts  
{ TAIL ~ The outer edge portion } 7 is mounted on the cylindrical portion 1A of { HEAD ~ the casing } 1 through bolts
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH