ADHORNA Manholes and Boxes for telephone conduits are manufactured according to TELEFÓNICA’s required specifications, and are therefore endorsed by the corresponding Technical Approval Certificates.   The main advantages of precast Manholes and Boxes are: product guarantee (they are made to specific order), delivery as per site requirements (normally in stock), and quick installation causing minimal disruption to the public and lower building costs. BOXES FOR UTILITIES MANHOLES FOR UTILITIES DOWNLOAD CATALOGUE      - They consist of two reinforced concrete modules, with the upper one resting on the lower one, bolted together and joined horizontally by a seal that ensures they are waterproof and facilitates on-site assembly. - The upper surface has a 90 cm diameter manhole. - Risers can be mounted on the pullbox. These facilities are available in heights of 150 mm, 200 mm, 250 mm, 400 mm and 800 mm, and may be combined with each other. - All the boxes are fitted with the cable opening as required by the specifications. - The GBRF-C box is designed for existing conduits.          They are made of vibrated reinforced concrete, in the shape of a straight-sided box, consisting of a floor, walls with cable inlet and outlet openings and the cover may be made of concrete or cast iron as appropriate.   PULLBOX - DFO PULLBOX - DF PULLBOX - HF PULLBOX - MF    These pullboxes are for fibre optic lines. The covers are made of concrete. They can be used in pavements, pedestrian precincts, parking areas and multi-storey car parks. (group 2 – class B 125) The DFO is for new conduits and the DFOC is for existing conduits.      They are manufactured according to different design loads: DF-I, DF-II and DF-III The DF model (DF-II and DF-III) can be used in pavements, pedestrian precincts, parking areas and multi-storey car parks (group 2 – class B 125) The DF-I model can be used on roadsides, hard shoulders and parking areas for all nature of vehicles (group 4 – class D 400) Concrete covers are provided for models DF-II and DF-III with cast iron for model DF-I          They are manufactured according to different design loads: HF-II and HF-III They can be used in pavements, pedestrian precincts, parking areas and multi-storey car parks (group 2 – class B 125) The HF model is available with either a concrete or a cast iron cover.      They can be used in pavements, pedestrian precincts, parking areas and multi-storey car parks (group 2 – class B 125) The MF model is supplied with a concrete cover.