When a hydraulic valve lifter is desired, {HEAD ~ the extrusion punch} 18 merely has {TAIL ~ a rounded end portion} instead of the protrusion 19 
has
When a hydraulic valve lifter is desired , { HEAD ~ the extrusion punch } 18 merely has { TAIL ~ a rounded end portion } instead of the protrusion 19
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH