... , like NBR, HNBR, SI, Viton, FKM, FPM,VMQ,EPDM rubber o-ring cord. Rubber O-Ring cord1. Offer a wide range of O ... option, including Buna-N (NBR), HNBR, VITON, Silicone, FluoroSilicone, EPDM, Teflon, Natural Rubber, BUTYL, SBR, Neoprene, HYPALON, etc. Our represent excellent value ...