Cabinets and enclosures adapted to hold computers and computer servers; cabinets and enclosures adapted to hold computer hardware equipment; electric switch cabinets and enclosures; cabinets and enclosures adapted to hold apparatus for recording, transmission or reproduction of sound or images; cabinets and enclosures adapted to hold data processing equipment; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, printed circui...