GOST R 59674-2021 Thermal insulation materials of polyurethane foam for building. Rigid polyurethane foam systems after applying. Rules and control of production of sprayed thermal insulation at the place of work
2021GOST R 59674-2021 Thermal insulation materials of polyurethane foam for building. Rigid polyurethane foam systems after applying. Rules and control of production of sprayed thermal insulation at the place of work