... .Terials:NBR,silione,NR,SBR,etc 2.Various types and color are available 3.Good quality with competitive price 1.Terials ... Seal, Rubber Gasket,O-Ring,etc4.You could option the color you like on the Oil O-Ring,Oil seal,Rubber ... for Oil Seal,O-Ring,Rubber Ring,Sealing Ring,SealingGasket. color rubber cap,rubber plug (SILICONE,EPDM,SBR,NR)