NIC 432203 का अर्थ Installation, repair and maintenance of ventilation, air-conditioning equipment and heating systems (electric, gas, and oil), furnaces, cooling towers, non-electric solar energy collectors, etc. है....
This class includes the installation, repair and maintenance of plumbing, heating and air-conditioning systems, including additions and alterations. This class excludes: - installation of electric baseboard heating, see 4321 - camera inspections in air ducts, water and gas pipes, and other liquids without repair or installation, see 7120
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Installation of heating systems (electric, gas and oil), furnaces, cooling towers, non-electric solar energy collectors etc.