rubber gasket for electric engine heater 1)100% Food-Grade Silicone Material 2)Certificate,Rosh,CE, ... ,EPDM,SILICONE,VITON,NR,FLS,FFPM,PU,PTFE etc.2)High temperature and acid-alkali resistance, anti-aging, no poison and ... 's an ideal solution for sealing application where there are high temperatures and corrosive liquids or gases involved.4)OEM/ODM ...