Stainless steel ring gasket 2.5mm-80mm CS&AS&SS&Rubber ISO9001:2000,API,CE,BV ANSI B18.21,ASME B16. ... 21,DIN127 ,JIS Stainless steel ring gasketType: Spiral wound gasket, oval RTJ, Octagonal RTJ, Lens gasket ... , corrugated gasket, Camprofil gasket, Double jacket gasket1) ...