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