[Class : 11] Fan, Installations For Lighting, Heating, Ventilation, Steam Generating, Cooking, Refrigerating, Drying Installations, Water Supply And Sanitary Installations; Air Humidifying Installations; Central Heating Installations; Air Recirculating Installations; Oil Purifying Installations; Led Lighting Installations; Installations For Chemical Processing; Ventilation Installations For Kitchens