Sabitov Е. and Ermaganbetov А. 2023. LLC "Daual " on the example of buildings of granite slabs for facades study of properties. Рroblems of engineering and professional education. 38, 5 (Mar. 2023), 41–44. DOI:https://doi.org/10.32523/2220-685X-2016-38-5-41-44.