Burglary resistant and forced entry doors and windows are according to DIN V ENV 1627 norm in WK1, WK2 and WK3 categories. RC1-RC3 Burglary resistant doors are single-wing, double-wing and fixed frames. Doors are burglary resistant from both inside and outside. Suitable hardware we use on the doors for safety and security are according to DIN 18257 ES1 norm.