Hydraulic Piston Seal 1,materical:PTFE+NBR 2,working pressure:<45 Mpa 3,temperature range:<120 4,factory direct sales Hydraulic Piston SealMaterial:PTFE+NBRAdvantages1,Excellent performance of sliding ,no crawling effect2,Good dynamic and static sealing3,High abrasion,long service life4,Wide using temperature range,high chemical stability(It depends on the material of O-ring)5,Simple and ...