9 Electrical cabinets, namely, electric switch cabinets, computer network cabinets and server cabinets of metal and/or plastic; racks and housings adapted for information technology, electronics installations, electronics, computers, interactive terminal systems and data transmission, also air-conditioned and/or earthquake-proof and/or vandalism-proof and/or explosion-proof; covers of metal, glass or plastic, namely, specially adapted doors, glass doors, perforated doors, screen, metal partitions for covering electrical switch cabinets, computer network cabinets, server cabinets, IT-specific racks and housings; closure devices of metal or plastic specially adapted for electrical switch cabinets, computer network cabinets, server cabinets, IT-specific racks and housings, namely, electric door locks and electric locking elements; auxiliary cabling devices of metal or plastic, namely, cable clamp rails, cable openings and profiled rubber clamps specially adapted as parts and fittings for electrical cabling; power supplies, namely, socket boards, plug-in units for holding computer server hardware assemblies