Join the PTC Asia 2007 exhi...
  KOMAF Shanghai 2007 exhibit...
  Hannover Messe 2007.04.16~0...
  UPA SERIES
  User can adjust impact absorbed range with dampening adjustable dial(360˚) according to impact velocity.
Rapid returning piston rod by specially designed spring for next cycle.
Surface of outer tuve and piston rod plate
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