7
Hydraulic controllers for gas water heaters
9
Measuring, controlling and regulating apparatus and systems; Data processing equipment and installations
11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; Heating boilers, instantaneous water heaters, water heaters and hot water tanks; Heat accumulating apparatus, exhaust gas, air and water heat exchangers and systems; Panel radiators, radiators; Fittings and components for heating installations and heating equipment; Gas and oil burners; Electric heating equipment, heating inserts for tiled stoves; Solar collectors and heating systems; Heat pumps, heating systems using alternative types of energy; Air-conditioning apparatus and installations; Block-type thermal power stations; Transfer stations for district heating
37
Servicing and customer services for the maintenance and repair of hydraulic controllers for gas water heaters, measuring, controlling and regulating apparatus and systems, data processing apparatus and installations, apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, heating boilers, instantaneous water heaters, water heaters and hot water tanks, heat accumulators, exhaust gas, air and water heat exchangers and systems, panel radiators, radiators, fittings and components for heating installations and heating equipment, gas and oil burners, electric heating apparatus, heating inserts for tile stoves, solar collectors and heating systems, heat pumps, heating systems using alternative types of energy, air conditioning apparatus and installations, combined heat and power plants, transfer stations for district heating