WR8 Curved Waveguide E Bend 90-140GHz 25.4mm WR8 curved waveguide E bend 90-140GHz 25.4mm WR10 Extending waveguide bend 1.67 inch WR12 curved waveguide H bend 60-90 GHz 25.4mm WR10 Pagpapahaba ng waveguide bend 1.24 pulgada