A simple structure is realized by using a common guide bore for guiding {TAIL ~ the extension side valve body} and {HEAD ~ the compression side valve body} 
A simple structure is realized by using a common guide bore for guiding { TAIL ~ the extension side valve body } and { HEAD ~ the compression side valve body }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD