The GRANITE collection of burglar-proof doors class C, EI 30, 32 dB are distinguished by the highest possible burglary resistance class „C”. They are therefore a desirable element of the entrance area for all those users for whom security issues are of prime importance.
GRANITE burglar-proof external doors are used as entrance doors to flats in multi-family dwellings (townhouses, blocks of flats, apartment buildings). They are suitable everywhere where the entrance to a flat is through a communal area – a stairwell or corridor.
