• W beam guardrail

    W beam guardrail

    The material for that are mainly the Q235B (S235Jr the yield strength is more than 235Mpa) and Q345B (S355Jr the yield strength is more than the 345Mpa).

  • Thrie beam guardrail

    Thrie beam guardrail

    The guardrail is mainly to follow the AASHTO M180, GB-T 31439.1-2015 and EN1317 standard.