A G.I. (galvanized iron) duct is a vital component of HVAC (heating, ventilation, and air conditioning) systems, facilitating the efficient circulation of air throughout buildings. Typically constructed from galvanized steel sheets to resist corrosion and ensure durability, G.I. ducts are fabricated in various shapes and sizes to suit specific airflow requirements. These ducts are assembled using techniques like welding, screwing, or riveting, forming a network that connects air handlers, vents, and air outlets to distribute conditioned air effectively. Properly installed and maintained G.I. ductwork ensures optimal airflow, temperature regulation, and indoor air quality, contributing to the comfort and efficiency of residential, commercial, and industrial spaces.