06
Common metals and alloys thereof, metal building materials;
aluminum building panels; metal extrusions, especially made
of aluminum
09
Scientific, nautical, surveying, photographic,
cinematographic, optical, weighing, measuring, signaling,
checking (supervision), life-saving and teaching apparatus
and instruments; apparatus and instruments for conducting,
switching, transforming, accumulating, regulating or
controlling electricity; photovoltaic modules
11
Apparatus for heating, steam generation, refrigeration,
drying and water distribution; heat exchangers, flat heat
exchangers; thermal conversion solar collectors [heating];
solar water heaters; hybrid solar collectors
42
Advice in the field of energy savings; technical project
studies for heating, steam generating, refrigerating,
drying, water distribution apparatus, heat exchangers, flat
heat exchangers, thermal conversion solar collectors
heating] and hybrid solar collectors; advice in connection
with technology in the area of heating, steam generating,
refrigerating, drying, water distribution apparatus, heat
exchangers, flat heat exchangers, thermal conversion solar
collectors heating] and hybrid solar collectors; Technical
project studies for energy savings, in particular by the use
of solar energy