Ring joint gaskets (metallic gaskets) are widely used in Christmas tree, Gate valve, ... joint gaskets, flexible graphite gasketa, spiral wound gaskets and not-metal gaskets such as asbestos gaskets, non-asbestos gaskets, PTFE gaskets, etc. All our gaskets are ... with those standard designs. TYPE R-series Gaskets RX-series Gaskets BX-series Gaskets IX-series Gaskets SHAPE Octagonal, oval, lens SIZE R11 ...