... ODM Several material for Oil Seal, Rubber Oil Seal, Rubber Seal, O-Ring,Rubber O-Ring,Rubber Ring Seal and Rubber Gasket like: NBR ... requirement; Products name oil sealExperiencemore than15 years` experience in rubber parts producing and mold developmentMaterialSilicone, NR, SBR, NBR., EPDM ... on your demand.ColorFor silicone any color available, for rubber usually black color, depended on your demand