Ring Joint Gasket – RX RTJ Gasket – BX RTJ Gasket Ring Joint Gasket Place of Origin: CHINA Model Number: HEROOS-610 Material: solid metal,SS304,SS316,SS347,Inconel,Monel etc Standard: ANSI B16.5-1973、JPI-75-15-70、GB 699、GB1220、JB755、HG20633-97