RF

Battery boxes; galvanic cells; galvanic batteries; grids for batteries; photovoltaic cells; solar batteries; plates for batteries; batteries, electric; wafers silicon slices

Roofing, not of metal, incorporating solar cells; lighting slabs; balustrading; props, not of metal; buildings, not of metal; building glass; binding agents for making briquettes; rigid pipes, not of metal building; window glass, for building; angle irons, not of metal

Building construction supervision; construction consultation; construction; electric appliance installation and repair; interference suppression in electrical apparatus; pipeline construction and maintenance; machinery installation, maintenance and repair; freezing equipment installation and repair; elevator installation and repair