9 ELECTRICAL APPARATUS AND INSTRUMENTS FORMEASURING, SIGNALLING AND CHECKING
11 INSTALLATIONS AND APPARATUS FOR LIGHTING, HEATING, STEAM GENERATING, COOKING, REFRIGERATING, DRYING, VENTILATING, WATER SUPPLY AND SANITARY PURPOSES, REGULATING AND SAFETY ACCESSORIES FOR THE ABOVE INSTALLATIONS AND APPARATUS
37 PLANNING ASSEMBLING, INSTALLING, SERVICING, MAINTAINING AND REPAIRING OF THE ABOVE ISTALLATIONS, APPARATUS AND INSTRUMENTS