Our Bullet Proof Doors are FB5, FB6 and FB7 levels according to EN 1522 standards, Level 3A, Level 3 and Level 4 level according to NIJ standards, Level 8, Level9 and Level 10 according to UL752 standards.If desired, features such as sound / heat insulation, explosion and fire resistance and /or burglary/vandalism can be manufactured by added.