WR8 Curved Waveguide E Bend 90-140GHz 25.4mm WR8 curved waveguide E gbagọ 90-140GHz 25.4mm WR10 na-agbatị ebili mmiri na-ehulata 1.67 inch WR12 curved waveguide H na-ehulata 60-90 GHz 25.4mm WR10 na-agbatị ntụgharị ntụgharị 1.24 inch