The clutching arms are symmetrically mounted on {HEAD ~ the main body} by the fixing plates thereof fixed on {TAIL ~ two opposite sides} of the main body 
The clutching arms are symmetrically mounted on { HEAD ~ the main body } by the fixing plates thereof fixed on { TAIL ~ two opposite sides } of the main body
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH