Valve oil seal 1.Good quality 2.Superior sealing effect 3. ... Oil sealSpecifications MertirialApplicationsHardnessPerformanceDocumentNBR,FPM (VITON) , MVQ (SILICONE) , ACM ,EPDM ,PTFEHNBR ,automobile, motorcycyles, agricultural machinery ,trucks buses,trailers,eavy duty machine ,pump ...