1,materical:PTFE+NBR 2,working pressure:under 45 Mpa 3,temperature range:under 120 degree celsius 4,factory direct sales KOMATSU Excavator part SPGO sealsMaterial:PTFE+NBR Advantages1,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, ...