6
Fittings of metal for cables; Sheets and plates of metal; Tinplate; Ducts of metal, for central heating installations; Cermets; Metal roof panels; Roofing materials; Doors and windows of metal; Cills; Roof frames; Building materials of metal; Fencing; Fittings; Penstock pipes; Wire for aerials and water pipes; Gutters; stairways; Nets and scaffolding; Ceilings; Pins; Vents; Junctions for pipes; Reinforcing steel
19
Concrete; Beams, not of metal; Cement; Bricks; Roofing tiles; Roof coatings; Building timber and worked timber; doorways; Glass windows; Frames; Gypsum; Corniches; Structures and construction materials, not of metal; Marble; Fences; Railings; Parquet flooring; Gutters; stairways; Tar; Lattice work; Pipes and binders for masonry; Ceilings; Ceiling; Shafts; Walls; Lime; Mortar for construction; Slag; Gravel; Slabs; Floor tiles
36
Real estate management, management of residential and office space; Real estate appraisal; Renting of flats; Brokerage relating to trading and rental of real estate; Brokerage relating to trading and rental of residential and office space
37
Building construction; Repair; Installation services; Construction of residential and industrial buildings; Construction of roads and bridges; Repair and building services; Painting, interior and exterior; Plastering; Bricklaying; Plumbing; Scaffolding; Installation and repair of heating; Demolition of buildings; Sealing and insulation of buildings; Leasing construction equipment; Rustproofing; Carpentry; Maintaining buildings in constant working order; Maintenance; Restoring usability of buildings resulting from wear and tear and damages - restoration of existing buildings or other damaged buildings; Which need to be restored to their original condition; Building construction supervision