... spiral wound gasket,gasket spiral wound,graphite gasket,sealing gasket,gaskets seals,gasket ... soft nonmetallic packing or the material of flexible graphite asbestos, nonasbestos, PTFE etc by means of ... ring and outer ring as different material such as carbon steel , stainless steel 304, 316, 316L and ... RS-SWGWith inner & outer rings304(L);316(L) Graphite, PTFE,CS, 321;317LAsbestos304(L), 316(L), 31803Non ...