{HEAD ~ The longitudinal members} of the frame may be formed of {TAIL ~ sections} of EMT material, or may alternatively be formed of poles cut in the field, if so desired 
formed of
{ HEAD ~ The longitudinal members } of the frame may be formed of { TAIL ~ sections } of EMT material , or may alternatively be formed of poles cut in the field , if so desired
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH