6
Common metals and their alloys; pipes and tubes of common metal; unworked and semi-worked common metals and simple goods made therefrom, not included in other classes, junctions for pipelines, sealing caps, valves (other than being parts of machines); frame work of metal for building
7
Motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); taps and valves (parts of machines, engines or motors); fittings for machines; distribution installations being quick assembly systems for apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
11
Heating installations and parts therefor, included in class 11, in particular apparatus for heating, refrigerating, drying, ventilating and water supply, boilers, hot water cylinders, indirectly heated service water heaters, instantaneous district heating apparatus for service water; pipes for water heating, as well as district heat house substations and radiator accessories, assemblies for connecting radiators and panel heating systems to heating and district heating installations; sanitary installations and parts therefor, included in class 11, in particular water heaters, hot water cylinders for baths, washrooms, toilets and prefabricated installations for sanitary cells, namely prefabricated installation frames, assemblies and blocks for sanitary installations, for pre-wall installations, included in class 11; pipes and pipelines being parts for heating and sanitary installations, namely flexible pipes for drinking water and heating apparatus, included in class 11; fittings for water supply in buildings and real estate, quick-release couplings and screw fittings for water pipes and units, included in class 11; taps, valves and regulating accessories for water or gas apparatus and pipes; fittings being parts for heating installations, for the pressure regulation of heating installations; pressure regulators, in particular differential pressure regulators, balancing valves; fittings for regulating radiators; distribution fittings for heating circuits; ironmongery and small items of metal hardware, being parts for heating or sanitary installations; solar collectors (heating) and hot water tanks for solar installations; heat pumps for room heating and/or heating liquids, included in class 11
17
Plastics in extruded form for use in manufacture; packing, stopping and insulating materials, in particular insulating materials (including for heat insulation); flexible pipes, not of metal; sealant compounds for joints, plastic gaskets; junctions (not of metal) for pipes and tubes; gaskets and sealing tapes of metal
37
Architectural consultancy, construction and repair; construction of firing installations; construction of industrial furnaces; insulation construction; building insulating; chimney construction
42
Technological services, namely construction drafting; technical project studies for heating apparatus and sanitary purposes; engineering services