METAL CONSTRUCTION ELEMENTS FOR SPACE FRAMEWORKS, NAMELY, TUBULAR RODS, SECTIONAL RODS, CONNECTING PIECES IN THE NATURE OF BUILDINGS IN THE FORM OF ROOF STRUCTURES, INCLUDING DOMES, CEILINGS, WALLS, SHEDS, AIRPLANE HANGARS, GREENHOUSES, TOWERS INCLUDING DRILLING TOWERS AND COOLING TOWERS AS WELL AS TOWERS FOR CHEMICAL PLANTS, BRIDGES, PYLONS, ROSTRA, STANDS, SALES STANDS, WING STRUCTURES AND SIMILAR STRUCTURES FOR THEATERS, FILMS, TELEVISION, ADVERTISING, SCAFFOLDING, MAINTENANCE FRAMEWORKS FOR AIRPLANES; STRUCTURAL PANELS MADE OF METAL ALONE OR IN COMBINATION WITH OTHER MATERIALS; METAL PIPELINES AND ELEMENTS THEREOF, NAMELY, METAL PIPES, METAL PIPE FITTINGS, METAL WASHERS, METAL MOUNTINGS AND METAL GASKETS

PLASTIC CONSTRUCTION ELEMENTS FOR SPACE FRAMEWORKS, NAMELY, STRUCTURAL PANELS MADE OF PLASTIC ALONE OR IN COMBINATION WITH OTHER MATERIALS FOR BUILDINGS; PREFABRICATED PLASTIC WALLS, FLOORS AND CEILINGS, WINDOWS, DOORS AND FACING PANELS FOR BUILDINGS, ROOF FRAME WALLS FOR BUILDINGS IN THE NATURE OF DOMES; PREFABRICATED NON-METAL STORAGE SHEDS, PREFABRICATED NON-METAL AIRPLANE HANGERS, PREFABRICATED GREENHOUSES, NON-METAL SCAFFOLDING; CONSTRUCTION ELEMENTS FOR SPACE FRAMEWORKS, NAMELY, STRUCTURAL WALL PANELS MADE OF WOOD OR MINERAL BUILDING ELEMENTS SUCH AS CONCRETE ALONE OR IN COMBINATION WITH OTHER MATERIALS; PREFABRICATED NON-METAL APARTMENTS; PREFABRICATED NON-METAL BUILDINGS FOR SPORTS, RECREATION, TRADE SHOWS AND FOOD STORAGE; PREFABRICATED NON-METAL WALLS, FLOORS AND CEILINGS; WINDOWS, DOORS AND FACING PANELS NOT MADE OF METAL FOR BUILDINGS