silicone rubber washers for Auto parts/food grade silicone gaskets/White Silicone GasketMaterialNR, NBR, SBR, EPDM, IIR, CR, SILICONE, VITONHardness20~90 Shore APacking Inner-Plastic ... machinery, electronic, household, medical, etcProvide ServiceRubber injection molding, Rubber transfer molding, Rubber compression molding, Rubber to metal molding, Custom rubber moldingColorYellow, Red, Black, White ...