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