Non-metallic building materials; non-metallic rigid pipes for construction; asphalt, pitch and bitumen; non-metallic transportable constructions; non-metallic monuments; mineral mortar, mortar, lime mortar, lime-cement mortar, cement mortar, cement, gypsum mortar, trass mortar, trass-lime mortar, but not including non-metallic flashing; barrier sheets and waterproof barriers and parts and fittings for such goods; building and construction materials and elements made of wood and artificial wood; doors, gates, windows and window coverings, not of metal; structures and transportable buildings, not of metal

Repair, renovation and maintenance work for structures, including the repair of historic structures as well as old (including masonry) road bridges, dams, dikes, embankments, weirs and hydraulic structures; advisory services relating to the maintenance, repair and renovation of buildings and other structures; building construction services, namely, drilling of cores, close reinforcement of masonry and insertion of ties, but not including any such services relating to non-metallic flashing; the installation of barrier sheets and waterproof barrier sheets; building, constructions and demolition services; rental of tools, plant and equipment for constructions, demolition, cleaning and maintenance; HVAC installation, maintenance and repair; building maintenance and repair; glazing, installation, maintenance and repair of glass, windows and blinds; plumbing installation, maintenance and repair

Material treatment; electrochemical treatment; metal treatment; recycling and waste treatment; welding