flexitallic spiral wound gasket,gasket spiral wound,graphite gasket,sealing gasket,gaskets seals,gasket epoxy yellow coating wit ... stripe and soft nonmetallic packing or the material of flexible graphite asbestos, nonasbestos, PTFE etc by means of piled. it can use ... & outer ring RS-SWGWith inner & outer rings304(L);316(L) Graphite, PTFE,CS, 321;317LAsbestos304(L), 316(L), 31803Non-asb321;317L4 ...