Water supply and sewerage facilities. Supplier of river sand, gemstone. Hydropower engineering. Facilities for navigation. Meteorological and hydrological services. Forecasts.
Building for civil, commercial, industrial, framing and roofing, interior and finishes: masonry, plaster, plaster, painting, tiles, tile, drywall, flooring, polystyrene.
Industrial and civil construction. Farm engineering, agricultural greenhouses, warehouses. Civil construction finishing. Waterproofing professional services and materials. Flooring and synthetic materials for construction.
