Direct manufacturers of high-quality FKMO ring seals 1.Material- FKM 2. ... material : NBR,HNBR,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU,PTFE etc.2) High temperature and acid-alkali resistance, anti-aging ... small2.Not resistant to low temperature3.Poor radiation resistance Direct manufacturers of high-quality FKM o ring seals