Rubber Valve Gasket Materials: different kinds of rubber & plastic, such as SILICON, NBR, SBR, NR, CR, EPDM and FKM Rubber Valve GasketFeatures: ... 1) Materials: different kinds of rubber & plastic, such as SILICON, NBR, ... SBR, NR,CR,EPDM and FKM2) Applications: rubber parts, industrial parts, household parts, motorcycle parts,electronic parts ...