TY - GEN AU - N Halsey AU - D E Marlowe AU - RA Mitchell C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1976-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.75-684 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1976 TI - Non-metallic antenna-support materials pultruded rods for antenna guys, catenaries and communications structures: ER -