{HEAD ~ The longitudinal movement} of {TAIL ~ piston} 96 causes longitudinal movement of valve pin 31 which is threadably mounted to piston 96 at 100 
of
{ HEAD ~ The longitudinal movement } of { TAIL ~ piston } 96 causes longitudinal movement of valve pin 31 which is threadably mounted to piston 96 at 100
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH