... . Shape: Octagonal, oval, lens 3. Standard: ASME B16.20 HG20612 HG20633 Product Description 1. Type: R, BX, RX, IX 2. Shape: Octagonal, oval ... : PN2.0(CLASS150)-PN42.0(CLASS2500) 6. Standard: ASME B16.20 HG20612 HG20633 7. Material: Carbon steel, soft iron, inconel600, M ...