1. Type: R, BX, RX, IX 2. Shape: Octagonal, oval, lens 3. Standard: ASME B16.20 HG20612 HG20633 Product Description ... 1. Type: R, BX, RX, IX 2. Shape: Octagonal, oval, lens 3. Size: R11-105, RX20-215 BX150-303, inch ... , inconel600, M-400, C-276, 10#, ss316, ss304. 8. Application: W/N flange, gate valve, oil&gas industry, oil christmas tree ...