ورقة قناة شرطة التدخل السريع

In modern HVAC duct systems, pre-insulated duct panels—especially pre-painted GI duct panels—are increasingly widely used. This is particularly true in large commercial buildings, industrial facilities, and rooftop HVAC systems, where ductwork must not only provide excellent thermal insulation performance but also offer enhanced weather resistance, structural strength, and long-term stability. As a result, pre-insulated duct […]