The beams 14 have a 1/2 inch square cross section, but {HEAD ~ other suitable shapes} may be used to separate and suspend {TAIL ~ the containers} 12 
used to separate
The beams 14 have a 1/2 inch square cross section , but { HEAD ~ other suitable shapes } may be used to separate and suspend { TAIL ~ the containers } 12
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH