The trunking may also include {TAIL ~ a cable retainer} for retaining {HEAD ~ cable} and the like in the channel member 
The trunking may also include { TAIL ~ a cable retainer } for retaining { HEAD ~ cable } and the like in the channel member
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH