Inqaku eliphambili kukulandela umgangatho we-AASHTO M180, GB-T 31439.1-2015 kunye ne-EN1317.
Izinto ezisetyenziswayo ngokuyintloko yi-Q235B (S235Jr amandla okukhupha angaphezulu kwe-235Mpa) kunye ne-Q345B (S355Jr amandla okukhupha angaphezulu kwe-345Mpa).
Ukuze ubukhulu be-guardrail bube phakathi kwe-4.0mm ne-7.0mm okanye ulandele imfuno yabathengi.
Unyango lomphezulu lufakwe nge-galvanized eshushu, ukuze kulandelwe i-AASHTO M232 kunye nomgangatho olinganayo ofana ne-AASHTO M111, EN1461 njl.
Ipali ifakwe emabaleni, ukuze iqinise kwaye ixhase udonga olukhuselayo. Inganciphisa amandla okubetha ngelixa ingozi isanda.