Body - 
The 90mm thick Monolithic barrier construction of high strength reinforced New Miltonex N300 concrete formula, which incorporates an abrasive and drill resistant aggregate. The barrier construction also reinforced with expanded metal. This is encapsulated between inner and outer steel plates. The composite construction ensures high levels of resistance to all types of mechanical and thermal tools, both against direct penetration and delamination type attacks.
 
Door –
An overall thickness of 170mm is protected by a keyless combination and a key lock. Each lock is protected by advanced drill resistant plates. Further protection is ensured by an anti-drive feature and a secondary relocking system, which is automatically activated in the event of an attack on the primary lock. The rear of the door is retained by a full length docking feature. This, together with a 3way multiple moving bolt engagement system, incorporating substantial 32mm DIA engagement bolts guarantees retent