ICS:
13.220.50 Fire-resistance of building materials and elements / Огнестойкость строительных материалов и элементов, 91.010.30 Technical. Including tolerances, modular coordination, etc. / Технические аспекты, 91.080.10 Metal structures / Металлические конструкции, 91.080.40 Concrete. Including the repair and protection of concrete products and structures / Бетонные конструкции