... 304,316,321.,347 ,carbon steel ,soft rionType: R-Type, Oval Type R-Type, Octagonal Type, RX Type RX, BX-Type Usage: static sealing for flange enduring ... /JPI, ISO,DIN, ENring joint gasketoval gasketoctagonal gasketR type gasket ringRX type gasket ringBX type gasket ring R/RX/BX lens gasket ring