Product introduction: National standard BJ26 (EIA international standard WR340) standard waveguide material: aluminum surface treatment: conductive oxidation optional: electrical installation board, flange type optional suitable for various microwave magnetrons with magnetron pin hole center of 114mm * 35mm. For example, Panasonic 2M210-M1, 2M167B-M11/M15/M10, etc; Samsung OM75P31/S31, etc; Witt 2M219K/G, 2M363K/G, 2M369K/G, 2M469K/G, etc; LG series; Toshiba series; Hitachi series