Building/construction activities, site work, development:
- construction management, erection, construction
procedure - building construction/structural engineering
- overground engineering, communication over
land/ways
- engineering communications and service pipelines,
utility lines
- asphalt
- soil base surfacing, solidification with binding
materials
- gabion steel structures
construction of bridges, tunnels and subways
- concrete mixer plant, transport, placing
- bridge roads, incl. insulating systems
- placing of bridge bearings and bolts
internal improvements, airfield construction and sports facilities construction.