Doorframe of combined type gives production against shock from a strong force,special hinges prevent the gas cutting and forcing open the door .leading spraying technology
Formed by steel sheet stamping, using the international advanved processes “foam cement ”.Beseting 3mm anti-drilling plate . efficient adiabatic interlayer wich is rigid complex fireproof material , anti-cutting ,anti-drill
Special and omnibearing bolt-retained unit between the door and body ,
A advanced warning device inside to prevent pounding ,moving and sloping
Electronic code lock (three-digit or six-digit number password setup),Chips from abroad , double circuit board design,a emergency key ,