Building and construction materials and elements of metal, namely, pipes of metal, wire of common metal, posts of metal, floors of metal, junctions of metal for pipes, reinforcing materials of metal for building, tiles of metal for building, framework of metal for building, building panels of metal, chimneys of metal, metal pillars for buildings, metal fencing panels, metal roof flashing, metal trim for buildings, metal siding, ventilating and heating ducts of metal, metal doors, building wall framing made primarily of metal, pillars of metal for building, frames of metal for building, pre-fabricated metal architectural columns, pilings of metal; pre-fabricated metal buildings; transportable buildings of metal; common metals and their alloys, unprocessed and semi-processed

Building and construction materials and elements, not of metal, namely, rigid pipes not of metal, concrete blocks, concrete bricks, concrete posts, concrete slabs, concrete panels, reinforcing materials not of metal for building purposes, non-metal water-resistant, fire-resistant, wood, plaster, and exterior boards and panels for construction, non-metal decorative moldings and decorative trim for use in building construction, non-metal ducts, non-metal cladding for construction and building, non-metal posts, non-metal building flashing, non-metal windows and doors; prefabricated buildings, not of metal; transportable buildings, not of metal; semi-worked wood and artificial wood; pitch, tar, bitumen and asphalt; stone, clay, rock and non-metallic minerals for building or construction; precast pavers, not of metal; armour-plating, not of metal, for building

Building construction and building demolition services; building maintenance and repair; installation, maintenance and repair of plumbing; lift and elevator installation, maintenance and repair; HVAC (heating, ventilation and air conditioning) installation, maintenance and repair; road sealing and stripping; waterproofing of basements; road stripping; installation of bridge expansion joints; pavement striping; refurbishment of plant buildings; painting of metal surfaces to prevent corrosion; application of coatings to drains; application of coatings to sewers; application of coatings to brickwork; painting services; application of coatings to tunnels; application of coatings for the repair of walls; application of screeds; application of rendering to tunnels; application of surface coatings; application of coating for others, namely, protective coatings for floors and building exteriors; excavating services for verifying the location of utility lines; advisory services relating to the installation of power plants; advisory services relating to the repair of civil engineering structures; advisory services relating to the repair of plumbing; advisory services relating to the maintenance of plumbing; advisory services relating to the excavation of trenches, namely, the reinstatement of trenches; advisory services relating to the application of surface coatings; advisory services relating to pipe laying; advisory services relating to the installation of plumbing; information services relating to installation of security systems; construction of wave energy power plants; advisory services relating to the repair of environmental control systems; advisory services relating to the maintenance of environmental control systems; advisory services relating to the installation of lighting apparatus; advisory services relating to the installation of fire prevention equipment; advisory services relating to the installation of building automation equipment; advisory services relating to the installation of hydraulic equipment; advisory services relating to the installation of passenger lifts; advisory services relating to the renovation of property; advisory services relating to the maintenance of buildings; providing information relating to the repair or maintenance of storage tanks; concrete repairs; concrete renovation; soil, asphalt and concrete drilling operations; roofing installation; resurfacing of roofs; ceiling installation; soil erosion control services; pavement marking services; pressure grouting services; insulating of pipes; installation of sewer liners; installation of lighting systems; installation of floor coverings; installation of ground anchors; installation of grills; installation of cavity wall ties; installation of interior partitions for buildings; installation of cavity wall insulation; installation of sun roofs; installing drywall panels; installation of doors; installation of false floors; installation of mezzanine floors; installation of internal partitioning; installation of electrical wiring; electrical installation services; installation of roof timbering; renovation, repair and maintenance of electrical wiring; renovation of electrical wiring; erection of reinforced concrete structures utilising sliding and climbing formworks; erection of grandstands; fence erection services; erection of sliding formworks; erection of curtain walling; information services relating to maintenance of security system equipment; damp proofing services; marine construction services; interior refurbishment of buildings; interior renovation of commercial premises; pipeline construction and maintenance; irrigation devices installation and repair; installation, repair and maintenance of boiler tubes; installation, repair and maintenance of cleanroom facilities and equipment; installation and maintenance of irrigation systems; installation and maintenance of photovoltaic installations; installation and maintenance of solar thermal installations; installation of building scaffolds; installation of lighting apparatus; installation of lightning conductors; application of fire retardant coatings; ceiling lining installation; installing fencing; installing septic tanks; installation of electric light and power systems; installation of manufacturing plant equipment; installation of building automation equipment; installation of hydraulic equipment; installing septic fields; installation of storage facilities, namely, construction of storage warehouses; installation of industrial machinery; installation of rainwater drainage systems; installation of rainwater collection systems; installation of rainwater harvesting systems; installation of rainwater tanks; installation of pipe insulation; installation of environmental protection systems; installation of tubular linings in passageways; installation of environmental engineering systems; installation of transmission lines; installing wallboard; installation of plumbing systems; installation of water supply apparatus; installation of fabricated construction units; installation of basement waterproofing products; maintenance and repair of cranes; maintenance of conduits; maintenance of roads; laying of cable; plumbing and glazing services; plumbing and installation of gas and water supply systems; application of anti-corrosion coatings; varnishing of board materials; installation and maintenance of land irrigation systems; painting and varnishing; mechanical cleaning of waterways; installing siding; installation of fittings for buildings; installation of felt roofs; installation of doors and windows; erection of pre-fabricated buildings; installation of storage systems; installation of building framework; repair or maintenance of building equipment; repair or maintenance of chemical plants; repair or maintenance of nuclear power plants; repair or maintenance of waste crushing machines and apparatus; repair or maintenance of construction machines and apparatus; maintenance and repair of energy generating installations; maintenance and repair of gas and electricity installations; maintenance and repair of cooling appliances and installations; maintenance and repair of wave energy power plants; maintenance and repair of wind power plants; repair of energy production plants and machines; repair of energy supply installations; repair of power lines; repair of gas supply systems; repair of water pollution control equipment; repair of canalization systems; repair of canals; repair of machines for treating organic waste; repair of conduits; repair of sanitary installations; repair of drying apparatus; repair of water supply apparatus; repair of water supply installations; repair of fences; repairing construction works; rust removing; rustproofing; renovation of discharge conduits; restoration of architectural works; restoration of retail premises; renovation of industrial boilers; renovation of conduits for water supply; renovation of nuclear plant; spray painting of metals; spray painting; abrasive cleaning of metallic surfaces; underwater abrasive cleaning of metallic surfaces; abrasive cleaning of non-metallic surfaces; underwater abrasive cleaning of non-metallic surfaces; marking of roads; renovation of commercial premises; maintenance of property; underwater dredging; underwater repair; floor layering, namely, installing flooring; installation of gas and water pipelines; laying of land cables; mains laying, namely, installation of wires for electricity; laying of sea cables; installation of water pipes; maintenance and repair of nuclear power plants; maintenance and repair of systems incorporating hoses which convey fluid; maintenance, repair and reconditioning of photovoltaic apparatus and installations; maintenance of water pollution control equipment; maintaining septic systems; provision of maintenance services for sports centers; civil engineering maintenance involving the use of pressurised jets of abrasive-containing water; civil engineering maintenance involving the use of hydromechanical cutting equipment; civil engineering maintenance involving the use of water-jet cutting equipment; providing information relating to septic tank cleaning services; repair or maintenance of water purifying apparatus