Ring joint gasket ANSI B16.5-1973,HG20612-1997,JPI-75-15-70,GOST 26.260.461-99 Pressure:PN10,PN25,PN40,PN64,PN200 Ring joint gasket1.Standard:ANSI B16.5-1973,HG20612-1997,JPI-75-15-70,GOST 26.260.461-992.Pressure:PN10,PN25,PN40,PN64,PN2003.Size:DN15-DN16004.Type:Oval section,octagonal section5.Material:Stainless steel 304/321/316.steel 10#,20#,16MN6.Technic:forged7.Surface treatment: rust- ...