37 General contracting services in the fields of demolition services, excavation, shoring, grading, foundations, and building construction; construction project management services; providing advisory and consulting services in the fields of demolition services, excavation, shoring, grading, foundations, and building construction; demolition services; bio-hazard biological clean-up services; construction services, namely, excavation, shoring, and grading; laying of foundations; construction, installation and repair of steel frames and metal buildings; asphalting services; concrete paving services; road paving, namely, paving roads using cold-in-place recycling; road construction services; municipal road and sidewalk maintenance services; demolition of roads; installation and maintenance of road signs; providing advice on the repair and maintenance of building structures; building construction for civil infrastructure projects; installation of utilities in the nature of wet utilities in construction sites; quarry services; operation of gravel pits; blasting services ;rock drilling; crushing of concrete, asphalt, and gravel; rental of road equipment, roadwork machines, construction equipment, cleaning machines, asphalt plants, gravel spreaders; construction supervision services, namely, supervision services for building construction, bridge construction, concrete construction, asphalt construction, tunnel construction, underground building construction, metal structure construction, steel structure construction, industrial plant construction, pipeline construction, road construction, canal construction and waste dump construction; concrete pouring and forming for buildings and other commercial or public concrete structures; general building and infrastructure contractor services; quarry services, mining services, and stone crushing services for the production of sand, gravel ,and crushed construction aggregates