Ring joint gaskets (metallic gaskets) are widely used in Christmas tree, Gate ... , and wellhead assembly. BETTER can supply a full size of ring joint gaskets, flexible graphite gasketa, spiral wound gaskets and not-metal ... RX-series Gaskets BX-series Gaskets IX-series Gaskets SHAPE Octagonal, oval, lens SIZE R11, R12, R13, R14, R15, R16, R17 ...