Direct manufacturers of high-quality FKMO ring seals 1.Material- FKM 2.Supply fast,best price ... quality 3.Any HOT SELL o rings1)We have kinds of material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU ... in producing for more than 20 years,The main production silicone rubber products, rubber products (NBR, EPDM, SBR, etc.) ... Poor radiation resistance Direct manufacturers of high-quality FKM o ring seals