High Pressure ASME API Flange Gasket 1. Octagonal, Oval or lens 2. R ... -105,RX20-215 BX150-303 4.Swift Delivery High Pressure ASME API Flange Gasket1.shape: Octagonal, Oval or lens2.type: R ... : PN2.0(CLASS150)-PN42.0(CLASS2500)6.standard: API 6A, ASME B16.20 HG20612 HG206337.Material: carbon steel, soft iron, inconel600 ... API Standard and meet our customer's demands. High Pressure ASME API Flange Gasket