... highway guardrail Production Standard: JT/T 281-2007, AASHTO M180raw material: Q235Detailed Product DescriptionSteel guard rails provide a visual and physical ... , ASTM, DIN, GB, JISGradeQ235,Q345Thickness2.85mm-4.0mmPlace of OriginShandong, China (Mainland)Brand NameHENGFENGModel Number2.85mm-4.0mmx85mmx310mmx1000mm-4320mmTypeSteel PlateTechniqueHot RolledSurface TreatmentGalvanizedApplicationroad ...