6 Containers, of metal, for liquids or gases.
7 Pressure control and safety valves.
9 Electric control and regulating apparatus and parts therefor and temperature measuring apparatus and monitoring apparatus, water treatment apparatus.
11 Water heaters, electric water boiling apparatus, electric hand driers, domestic electric heating apparatus, electric heating apparatus, electric convection ovens, electric heat accumulating apparatus for central or local installation, electric air-conditioning apparatus, ventilating apparatus, ventilating apparatus with heat recycling, electric heating elements, electric immersion heaters, built-in heating flanges, heating apparatus for central heating systems with or without central water heating component, including installation and assembly units therefor, fittings for water pipes of metal, metal alloys or plastic, water treatment apparatus, solar collectors, including installation and assembly units therefor, heat pumps for heating service water; central heating installations fitted with heat pumps and/or solar collectors, and components therefor, including evaporators, condensers, pipework and control apparatus, thermally and/or electrically-operated fittings for heating installations, instantaneous gas water heaters, automatic gas-fired central heating apparatus, gas-fired hot water storage units.
20 Containers, of plastic, for liquids or gases.
37 Installation, assembly, repair and maintenance of the aforesaid goods.