This cab has {TAIL ~ front and rear doors} and a remote control for operating a motor which drives the chains within both of {HEAD ~ the trollies} simultaneously 
This cab has { TAIL ~ front and rear doors } and a remote control for operating a motor which drives the chains within both of { HEAD ~ the trollies } simultaneously
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH