... suppiler standard or drawing can provide spiral wound gasket outer ring typePRODUCT NAME: SPRIAL WOUND GASKET/Spiral wound gasket ... with outer ringStructure The V-shaped or W-shaped stainless steel ... drawing makingMaterial Steel tape/ SS304, ss304L ,316, 316L, ss31803, inconel , monel,SS32205,Hastelloy, Ti, Alloy Inner ring and outer ring/Q235, ...