Purchase of technical service for the heating-cooling-ventilation, water-channel system and equipment operated in the administrative buildings of the Central Bank. Technical service for the heating-cooling-ventilation, water-channel system and equipment operated in the building of the reserve center of the Central Bank located at the address 82-280 km of H. Aliyev avenue, Yevlakh city. maintenance of heating-cooling-ventilation, water-channel system and equipment technical service of heating-cooling-ventilation, water-channel system and equipment operated in the Central Bank building located at Jalil Mammadguluzade street, Nakhchivan MR, Nakhchivan city