... price 4)Offer OEM o ring seal1)We have kinds of material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU, ... Item nameO RINGSizeCustomized/standard and nonstandardBrand Nameo ringMaterialNBR,HNBR,EPDM,SILICONE,VITON,FLS,FFPM,PTFETemperatureCommon: 20~50degree centigrade;NBR(-40~120C ... Various rubber o ring for your reference Our FKM viton o ring Our NBR o ring hardness 70 Our silicone o ring Our EPDM o ...