The channel sections can be nested for {HEAD ~ ease} of transport and {TAIL ~ storage} and can be easily assembled on site 
of
The channel sections can be nested for { HEAD ~ ease } of transport and { TAIL ~ storage } and can be easily assembled on site
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH