The MB-60E EI system is used to make internal or external doors
single and double leaf fire protection systems. This system also enables execution
the so-called technical windows and fireproof partition walls.
Structures made on the basis of the MB-60E EI system may have resistance classes
fire resistance EI 15, EI 30 according to PN-EN 13501-2 + A1: 2010. The system is
classified as fire retardant (NRO).