GOST R 42.4.07-2020 Civil defence. Engineering and technical equipment of civil defence constructions. Protective-hermetic and hermetic doors, gates and shutters for shelters. General technical requirements and control methods
1970GOST R 42.4.07-2020 Civil defence. Engineering and technical equipment of civil defence constructions. Protective-hermetic and hermetic doors, gates and shutters for shelters. General technical requirements and control methods