... 2.High temperature resistance 3.good flexibility, good elasticity TC valve seal1.Materials: NBR, NR ,EPDM ,SBR ,SR ,CR ,Silicon, etc ... ,Rubber Oil Seal,Rubber Seal, also can make on your size.5.Optional color for you of the Oil Seal,Rubber ... , SILICON RUBBER, NYLON, PU, CR, SBR, EP, IIR etc TC valve seal