Activities are active Construction of buildings - sects Construction of buildings - sects General construction of residential buildings - nyms General constructions of non-residential buildings, including (schools, hospitals, hotels ... Etc.) The suffs General construction of non-residential buildings, airports, combination General construction of iron non-residential buildings General constructions of other non-residential buildings that have not previously been mentioned in the previous Construction of prefabricated buildings in sites - refabricated Restorations of residential and non-residential buildings Construction and repair of roads, streets, sidewalks and road supplies. Construction and repair of bridges and tunnels Construction and repair of railway lines - selas Other activities related to the construction and repair of roads, bridges, tunnels and railways or part of them did not appear elsewhere. Construction of projects for benefits and motives Extension of pipes of various types for electricity, communications and others