GOST 21.508-2020 System of design documents for construction. Rules for execution of the working documentation of general layouts of enterprises, buildings and civil housing objects
2020GOST 21.508-2020 System of design documents for construction. Rules for execution of the working documentation of general layouts of enterprises, buildings and civil housing objects
1993GOST 21.508-1993 System of building design documents. Rules of fulfilment of working documentation of general layouts of enterprises, buildings and civil housing objects