HRB 30P 90 SHLW Anti-terror shallow mount model road blocker, suitable for installation in where high security protection is needed: only 400 mm depth of excavation is required to install HRB, and has succesfully certified based on IWA 14-1:2013 Road Blocker V/7200[N3C]/80 and PAS68:2013 Road Blocker V/7500[N3]/80 crash test standards by the accredited 3rd party companies.