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