maintenance of three-dimensional [3D] printers; maintenance of 3D printers; repair of three-dimensional [3D] printers; repair of 3D printers; repair or maintenance of three-dimensional [3D] printers; repair or maintenance of 3D printers; construction of buildings, roads, bridges and dams; construction of public works; construction services; civil engineering construction; property construction; construction of offices; construction of infrastructures; repair of construction works; building and construction services; construction, maintenance and renovation of property; construction, maintenance and renovation of buildings; construction of airports; construction and repair of residential buildings and houses; construction management [supervision]; construction of prefabricated buildings; maintenance of construction equipment; construction of underground structures; construction of porches; scenery construction; on site construction project management relating to building construction; building construction supervision services relating to shopping centres, industrial complexes, office buildings, residential buildings and other real estate developments; erection of pre-fabricated buildings and structures

3D printing; rental of 3D printers; 3D printing services for others; custom 3D printing for others

design of 3D models for 3D printing; design and development of 3D printing machines; design and development of components for 3D printers; design of computer-simulated models for 3D printing; architectural design; research in the field of architecture; architectural design for interior decoration; design of buildings; consultancy and advice in the field of architecture; design of building interiors and exteriors; architectural services; architectural and urban planning services; architectural services for the design of industrial buildings; architectural design for town planning; professional consultancy relating to architecture; research in the field of building construction