Ring joint gasket 1.Pressure:PN10,PN25,PN40,PN64,PN200 2.Size:DN15-DN1600 3.Type:Oval section,Octagonal section Ring joint gasket1.Pressure:PN10,PN25,PN40,PN64,PN2002.Size:DN15-DN16003.Type:Oval section,octagonal section4.Material:Stainless steel 304/321/316,steel 10#,steel 20#,16MN5.Processing technic:Forging6.Packing:Cartons in wooden case7.Surface treatment :Rust-preventative oil as requested. ...