o ring Materials:NBR,NR,FPM,EPDM, silicone, SBR,PU Specifications: Molded, OEM o ringrubber(rubber product,rubber part,rubber seal)Materials: NBR, NR, FPM ... , EPDM, silicone, SBR,PUFunction: automobile/machine useCharacteristics:ozone-resistant, high/low ...