42 Custom design and engineering of building materials, constructions of metal, steel, aluminum, plastics and timber, tubes, plates, profiles, constructions for indoor and outdoor sun screens, roll shutters, blinds, shutter grilles, jalousies, slatted blinds, venetian blinds, external blinds, awnings and terrace roofs as well storage systems and their parts, replacement parts and accessories, insect screens, doors gates garage doors, roller doors, profiles, guide rails, runners, end caps, cover plates and angular plates and locking mechanisms, keys, locking devices, building constructions consisting of rigid foam, pipes sheets and profiles consisting of rigid foam, adapted storage devices to and covers made of rigid foam for roil shutters, blinds, shutter grilles, jalousies, slatted blinds, venetian blinds, exterior blinds, awnings and terrace roofs, textile fibers for indoor and outdoor sun screens, curtains, textile fibers for insect screens, textile fibers for the protection against solar radiation; Development of computer hardware and software for building materials, constructions of metal, steel, aluminum, plastics and timber, tubes, plates, profiles, constructions for indoor and outdoor sun screens, roll shutters, blinds, shutter grilles, jalousies, slatted blinds, venetian blinds, external blinds, awnings and terrace roofs as well storage systems and their parts, replacement parts and accessories, insect screens, doors gates garage doors, roller doors, profiles, guide rails, runners, end caps, cover plates and angular plates and locking mechanisms, keys, locking devices, building constructions consisting of rigid foam, pipes sheets and profiles consisting of rigid foam, adapted storage devices to and covers made of rigid foam for roll shutters, blinds, shutter grilles, jalousies, slatted blinds, venetian blinds, exterior blinds, awnings and terrace roofs, textile fibers for indoor and outdoor sun screens, curtains, textile fibers for insect screens, and textile fibers for the protection against solar radiation