Direct manufacturers of high-quality FKMO ring seals 1.Material- FKM 2.Supply ... quality 3.Any HOT SELL o rings1)We have kinds of material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU ... resistance6.Erosion resistant7.high temperature resistance8.Radiation resistanceDefect:1.The permeability of small2.Not resistant to low temperature3.Poor radiation resistance Direct ...