şekil

Non-metallic building materials; rigid pipes, not of metal, for building; asphalt, pitch and bitumen; transportable buildings, not of metal; monuments, not of metal; blocks of concrete; blocks made of concrete for coastal protection; concrete building materials; concrete building elements; concrete retaining walls. Construction of civil engineering structures by laying concrete; services for the construction of buildings and infrastructures, consultancy services in the field of construction, supervision (management) of construction works, information in the field of construction, rental of construction machinery and equipment; rental of tools, machines and equipment for construction and demolition: repair and maintenance of buildings and structures, information on repairs, cleaning services (interior and exterior surface) for buildings; installation services during the construction of buildings and structures. Technological consultancy and engineering services, as well as research, design, planning and supervision of structures, infrastructures and buildings in the civil, railway, aeronautical and naval engineering fields; technical project study, research relating to environmental protection, quality control; planning and consultancy relating to architecture; development of construction projects, geological analyses and testing, design of engineering construction systems, analysis of the structural behavior of building materials, research on the construction of buildings or urban planning, development of computer programs designed for use in construction and engineering; measurement of environmental conditions in civil engineering structures, conducting of engineering surveys.