Aboutthisproduct:SpiralWoundGasketistheidealgasketinthesemi-metalliccategory.AnarrowstripofV-shapmetalhoopisspirallywoundundertensionwithafillercushionbetweenthelaminationofthemetalandisspot-weldedatbothends.TypeCrosssectionHoopmaterialFillermaterialInner,OuterringmaterialNormalThicknessBasictypeSUS304,316,321Ti,Moneletc.AsspecifiedStainlesssteeltape.AsbestosCarbonsteelsheetorSUS304,306etc.AsspecifiedsheetV-shapedW-shapedWithinnerringNon-asbestos3.24.52.54.85.57.5WithouterringExpandedgraphiteWithinner&outringPTFE)