I am looking for a steel hall supplier. Drawings: https: link to the file pliki_rozne 1827_zdjecia.jpg . The hangar would require a structure and a 120 mm thick flat sandwich panel for the walls and roof, filled with wadding. Roof load 500 kg m2. Painted structures. Elevator gate is not required. Aluminum windows and doors. We are interested in the structure itself, we will assemble it ourselves. We are a company from Lithuania, contact in English.