Construction services; construction supervision; building construction; building services; construction project management [construction supervision]; road construction; commercial construction; industrial construction; construction project management services [construction supervision]; building construction services; construction equipment rental; building construction supervision; construction and repair of airports and airport facilities; building construction advisory services; construction of buildings.

Architectural planning; architectural services; architectural project management; architectural design services; consulting services in the field of architectural design; architectural services for the design of industrial buildings; architectural services for the design of commercial buildings; engineering; technical engineering; engineering drawing; engineering consultancy; engineering services; engineering design; engineering research; civil engineering; engineering feasibility studies; engineering drawing services; engineering consultancy services; engineering project management services; architectural and engineering services; engineering product design; design and development of engineering products; research services in the field of engineering; technical consultancy in the field of environmental engineering; technical planning and consulting in the field of light engineering; research in the fields of materials science and electrical engineering; testing and research services in the field of civil engineering; engineering research and design services in the field of drilling technology.