API 6A Valves Parts Ring Joint Gasket 1.type: R,BX,RX, ... -105,RX20-215 BX150-303, inch 1/2-inch244.certificate:API 6A, ISO9001:2000 5. pressure: PN2.0(CLASS150)-PN42.0 ... 450F5 540304 600 316 450 9. APPLIANCE: W/N flange, gate valve, oil&gas industry, oil christmas tree, wellhead assembly, ... with our customers together and serve for them anytime anywhere. API 6A Valves Parts Ring Joint Gasket