[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - a total of ventilation ducts], also known as duct flange plate flangeless duct, its production in the form of processing speed faster and more convenient than traditional rectangular duct, less air leakage rate. The advantage is saving material pipe prices, reduce engineering investment; a small amount of air leakage pipeline pictures, reduce energy consumption, save operating costs, popular construction enterprises welcome. United States and Europe and other developed countries since the 1990s using duct flangeless connection. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - duct] Product Features: Compared with the traditional hand-knock galvanized iron pipe system, the mechanism of spiral duct has the following advantages: (1) a good seal. (2) the strength and rigidity are good. (3) Small angle iron flange pipe ventilation resistance, ventilation noise, pipe than the pipe. (4) easy to install, less connection points. (5) high quality, beautiful appearance. Pipeline price, Tianjin pipes, Tianjin Jinzhong Ji pipeline project provided by the Tianjin Jinzhong Ji HVAC purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) strong, credible, in Tianjin fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the group into the brilliant and you work for a better future!