6 Reinforcing building materials of metal for installation of photovoltaic apparatus and installations for generating solar electricity; reinforcing building materials of metal for installation of photovoltaic apparatus and installations for generating solar electricity, namely, mounts for photovoltaic apparatus and installations for generating solar electricity and mounts for photovoltaic installations for generating electricity; small items of metal hardware for installation of photovoltaic apparatus and installations for generating solar electricity, namely, bolts, nuts, threaded fasteners, washers, spacing brackets, screws, and rivets; roofing of metal for installation of photovoltaic apparatus and installations for generating solar electricity; reinforcing building materials of metal for installation of the whole of photovoltaic apparatus and installations for generating solar electricity; reinforcing building materials of metal for installation of solar panels for the production of electricity; small items of metal hardware for installation of solar panels for the production of electricity, namely, bolts, nuts, threaded fasteners, washers, spacing brackets, screws, and rivets; roofing of metal for installation of solar panels for the production of electricity; reinforcing building materials of metal for installation of the whole of solar panels for the production of electricity; reinforcing building materials of metal for installation of solar cells; roofing of metal for installation of solar cells; metal materials for building and construction, namely, roofing of metal; prefabricated building assembly kits of metal; small items of metal hardware, namely, bolts, nuts, threaded fasteners, washers, spacing brackets, screws and rivets; metal joinery fittings; solar panel mounts made of metal; solar panel mounts made of metal, namely, mounts for solar panels for the production of electricity, mounts for solar modules, and mounts for solar panels for the production of electricity loaded with automatic solar tracking sensors; roofing of metal, incorporating solar cells; substrates primarily of metal for supporting solar cells, photovoltaic cells and solar collectors for building purposes