Ducts of metal for ventilating and air conditioning installations and structural parts and fitting therefor

'air':7 'condit':8 'duct':1 'fit':14 'instal':9 'metal':3 'part':12 'structur':11 'therefor':15 'ventil':5

air filters and ventilating fans for air conditioning and structural parts and fittings therefor

'air':1,7 'condit':8 'fan':5 'filter':2 'fit':13 'part':11 'structur':10 'therefor':14 'ventil':4

Maintenance, installation and repair of extraction and ventilation systems

'extract':6 'instal':2 'mainten':1 'repair':4 'system':9 'ventil':8

computer software, electronic power boards and electronic monitor boards for controlling extraction, ventilation and filter systems

'board':5,9 'comput':1 'control':11 'electron':3,7 'extract':12 'filter':15 'monitor':8 'power':4 'softwar':2 'system':16 'ventil':13

Ducts, not of metal, for ventilating and air conditioning installations and structural parts and fittings therefor

'air':8 'condit':9 'duct':1 'fit':15 'instal':10 'metal':4 'part':13 'structur':12 'therefor':16 'ventil':6

DISA

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