1. Oil resistant,environmental 2. Different Size are awailable itemRubber seal seatmaterialNR, SBR, BR, IR, CR, IIR, NBR, HNBR, EPDM, VITON, ... to your design or samplecolorIn any color.originChina(mainland)brandPetrel rubber and plasticcharacteristicHarmless, nontoxic, non-radiation, high flexibility, comfortable, sound ... with fast delivery3.Free sample will be sent on requirements Rubber seal seat