These prefabricated units are designed for both residential and industrial use. These are structures built on a reinforced concrete base and anchored to it through a self supporting steel structure properly insulated along its perimeter with sandwich panels of required thickness. This type of prefabricated structures requires that the most of the production will be carried out on the site. These cabins are totally designed on the specific customer requirements. The great versatility of this building technology allows the construction of several qualified and efficient structures such as schools, offices, dormitories, warehouses, plants. The self supporting structure of the prefabricated unit is completely made of galvanized steel. The outer walls are made of 40 mm thick or above sandwich panels preventing from external water penetration. Windows and doors frames are made of prepainted aluminium /PVC profiles. The floor is in waterproof plywood (18mm thick) covered with a omogeneous PVC layer. Toilets batteries or other specific solutions are available upon request. Every unit comes with a certificate of compliance to the IEC standards, pursuant the current safety regulations. The system provides a general switchboard with provision for connection of 220 V. Water system with drainage network in HEAVY PVC wall mounted or under floor and polypropylene water supply plumbing is designed to be connected to the water mains/sewer. The inner pipes are made of propylene, vitreous WC, shower with sit down option, sinks in ABS, chrome fittings. Electric wall boiler where needed.