{HEAD ~ Raised curbs} 69 can be added to floor structure 63 and {TAIL ~ center frame} 61 
added to
{ HEAD ~ Raised curbs } 69 can be added to floor structure 63 and { TAIL ~ center frame } 61
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH