Stock Photo - ***MARCH 31, 1977, FILE PHOTO*** The Research Institute of Civil Engineering Prague-Hostivar, the Agricultural Building Association Blansko and the Brno plant of Agroprojekt Prague have developed a system that allows designers to design buildings for livestock breeding in 84 variants using a modular system. Almost 1 million kg of steel per year and a commensurate amount of energy, extraordinary transport costs, assembly mechanisms, construction time and, last but not least, agricultural land will be saved by solving a national research task - new construction sets for large-scale agricultural buildings. From left:Karel Nippert, foreman Alois Hagr and BSP (Socialist Labour Brigade) manager Tomas Meluzin inspect the assembly of a new structural system for the construction of a large-capacity cowshed. (CTK Photo/Frantisek Nesvadba)