1,Nominal Volume:0.49-250L 2,Nominal pressure:10,20,31.5MPA hydraulic shock absorber,accumulator,hydraulic shock absorber Nation standard Accumulator1,Nominal Volume:0.49-250L2,Nominal pressure:10,20,31.5MPA3,Attended mode:threaded connection,flanged connection4,Medium:hydraulic liquid,emulsion,water-glycolhydraulic shock absorber,accumulator,hydraulic shock absorber