Anti-bump barrel 1) Diameter: 900mm Height: 920mm 2) impact strength:20kj/ ... strength:16.44Mp 4) One step Shaped plastic safe traffic anti-bump barrel 1.Form one-time,heat-resistant,cold-resistant,shock ... the highway exit and crossroads,toll stations,gas stations,clear warning for the drivers,cab reduce the harm in the ... strength:16.44Mpa7.Elongation at Rupture:264 plastic safe traffic anti-bump barrel