Degreased ventilation ducts - an expensive luxury. Affedtede ventilationskanaler - en kostbar luksus.

airbase... [1449Kb]
Andresen W J
cleaning, duct, maintenance
Year:
1997
Bibliographic info:
Denmark, TFVVS Danvak, Vol 33, No 15, December 1997, pp 18-22.

             

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