1.material:PTFE+NBR 2.working pressure:under 45Mpa 3.temperature range:under 120 degree celsius 4.application:Cylinder etc ... BRT,wear ring WR,slide ring KZT,OUY,ROI etc.2.)Excavator Spare Parts,CATERPILLAR,VOLVO,KOMATSU,HITACHI,KOBELCO,KATO,SUMITOMO,HYUNDAI,DOOSAN ... HALLITE, KOREA WYS,Hydraulic Cylinder Seal Kits ARM BOOM BUCKET,3.)Repair seal kit, Center Joint, Track Adjuster Cylinders seal kit ...