Product brands and models of zinc steel guardrail installation height (mm) 500-3000 column center distance (mm) 2500,3000 Buried column height (mm) 500-3000 column cross-sectional dimensions (mm) 50 * 50,60 * 60 standpipe sectional dimensions (mm) 16 * 16,19 * 19,20 * 20 mesh size (mm) 12-15 Material pipe coating process dip galvanized electrostatic powder coating color green, dark green, solid color, yellow, sky blue and other optional accessories ■ Anti-climb piece mesh ■ ■ bayonet barbed wire cage protective purpose venue