11
Filters (parts of domestic or industrial facilities), namely
air filters, exhaust air filters and process filters,
filters for purifying fluid process media or waste goods and
filters for use in the field of clean room technology
37
Repair, service and maintenance of filters being parts for
household or industrial installations, namely of air
filters, exhaust air filters and process filters, filters
for purifying fluid process media or waste goods and filters
for use in the field of clean room technology; assembly and
installation work for the insertion and commissioning of
filters being parts for household or industrial
installations, namely of air filters, exhaust air filters
and process filters, filters for purifying fluid process
media or waste goods and filters for use in the field of
clean room technology
40
Recycling of filters being parts for household or industrial
installations, namely of air filters, exhaust air filters
and process filters, filters for purifying fluid process
media or waste goods and filters for use in the field of
clean room technology
42
Conducting of technical inspections and technical planning,
technical calculation, surveying for the optimisation of
filter installations for air, liquids and dust removal
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