6 Flexible pipes and tubes of metal, rigid pipes and tubes of metal, compression joints for pipes, of metal, plastic deformation joints, fixing systems, valves of metal, water-pipe valves of metal, manhole covers.
7 Electric pumps and motors, servo-motors, pressure reducers, clack valves.
8 Tools and equipment for assembly.
9 Heat regulators, water meters, gas meters, calorie counters, heat distributors, electronic data detection and transmission equipment, computer software for management and design of installations, disconnectors, vacuum breakers.
11 Installations for the distribution of water for sanitary purposes inside buildings, installations for the distribution of water for sanitary purposes and heating with "pipe to pipe" fittings, public water and gas distribution installations, floor, wall, and ceiling heating and cooling installations, gas supply installations, air treatment installations, air conditioning installations, fire-fighting installations, remote heating installations, valves and joints and connections for engineering installations, fire hydrants, pipes of composite material, column-end ventilators, gas filters.
17 Compression joints for pipes of synthetic material, heat and sound insulation, valves of rubber.
19 Non-metallic rigid pipes, pipes and tubes of synthetic material including waste water pipes, water-pipe valves, not of metal or plastic.
20 Water-pipe valves of plastic.
35 Business management.
36 Real estate management.
37 Installation and information services relating to repair and construction.
39 Water distribution.
42 Design, management and consultancy for public and industrial engineering installations and gas, fuel and water distribution networks, energy management of buildings.