FIRST of All, Light -Type Metal Structures Actively Used in the Process of Building Low -rise Struntures of non -onsidential Direction, WareHouses, Hangars, ETC, ETC, ETC, ETC, ETC, ETC, ETC, ETC, ETC. D. In the Process of Ereting Such Buildings that has a Small Number of Storeys and Area, it is the rapidaly metal structures that suchi anch. The Manoufactoring Process of Such Metal Structures is not Very Costly, Respectively, The Final Value of the Object Is Very Low. If we are Talking ABOUT THE CONSTRUCTION OF MORE BULKY STRUCTures, then T. n. Heavy Metal Structures. Such Products Are Relevant for Industrial Construction.