Building materials of metal, namely, binding of nails of metal, binding washers of metal, binding nuts of metal, binding tacks of metal, binding bolts of metal, binding screws of metal, boards, bolts, brackets of metal for buildings, metal joinery fittings for buildings, prefabricated buildings of metal, casement windows, cladding for construction and building, door bolts, door casing, door closures; metal door fittings, namely, keys and key cylinders, hinges, door frames, door handles, door panels, doors, door stops of metal; metal fences; fittings of metal for windows, namely, metal window sills; flashing of metal for building; metal gates and gratings; greenhouse frames of metal; small items of metal hardware, namely, metal gate latches, pulleys, springs, nuts, washers; insect screens of metal, jalousies of metal, locks of metal for bags, metal exterior blinds for building; reinforcing materials of metal for building, namely, waterproof louvers, slide shutters, shutters, window shutters, rivets of metal; metal roofing, sash fasteners of metal for windows, sash pulleys, screws, tiles of metal for building, window frames, windows, bay windows, siding, curtain walls, transportable greenhouses of metal for household use, common metals and their alloys for further manufacturing, ceiling boards, all of metal

Building materials not of metal, namely, non-metallic ceiling boards, stone for buildings, window glass for buildings, window frames, windows, non-metallic panels for building sold as non-metallic panels for curtain walls, casement windows, doors, door frames, door panels, fences, gates, roof coverings, balustrades, marble, granite, andesite, sandstone, limestone, artificial marble, plaster, plywood, building timber, moldable wood, non-metallic partitions in the nature of walls, mainly of plastics; insect screens, shutters, tiles for building, prefabricated buildings not of metal, all not of metal

Building construction, namely, masonry, glazing, glasswork, plastering, carpentry, block laying, joinery; interior work, namely, painting and cleaning of buildings, painting, damp-proofing for buildings; roofing services, exterior work, namely, painting and cleaning of buildings, remodeling of buildings, electrical system installation, window and sash installation, repair or maintenance of mechanical parking systems, repair or maintenance of automatic doors; cleaning of buildings and exterior surfaces of buildings; window cleaning; building remodeling services

Architectural design; building design services; urban planning; design of electric lighting apparatus; design and research on building construction or city planning