Canal constructionCivil engineeringConcrete worksIndustrial construction and hall buildingOutdoor facilitiesPipeline constructionPrecast concreteReinforced concrete worksRoad constructionStructural engineeringUnderground construction
BricklayingCanal constructionConcrete worksEarthworksGeneral contractorsIndustrial construction and hall buildingReinforced concrete worksShellStructural engineeringTurn-key constructionWaste disposal