[40100000] - Equipement et composants et systèmes de chauffage et ventilation et circulation d'air et climatisation - Heating and Ventilation and Air Circulation Systems and Equipment and Components (HVAC)[81000000] - Services d'ingénierie et de recherche et services technologiques - Engineering and Research and Technology Based Services[40180000] - Tubes et raccords - Tubes tubing and tube fittings[40170000] - Tuyauterie et raccords - Pipe piping and fittings[27000000] - Outils et machines générales - Tools and General Machinery