In production form, a total of flange plate duct tube compared with traditional rectangular air duct flange plate tin, with the processing speed faster, more convenient, less air leakage rate characteristics. It is now a fast-paced, high-efficiency of a society requires a total of flange duct, which keep up with the pace. Second-made flange plate duct, it is more economical production of materials to reduce the engineering investment, can reduce energy consumption for processing, saving operating costs, popular among construction enterprises than traditional duct. And popular flange plate duct using duct fighting strength scale processing section cut galvanized steel material loss. This duct should be sealed at a high pressure air to 4050mm inner tube in the duct section associated with the folding of the tube should be in the longitudinal seams of the duct and duct sealing compound section. Galvanized iron flange plate duct, Yao Fengzhen (certified), Huaibei total of flange plate duct provided by Lu right Tuen induced fan Limited. Lu right Tuen induced fan Limited (www.dzydfjjg.com) is a professional "roof fan, exhaust fan, intelligent induced fan, induced fan" of the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "Yao Fengzhen" brand has a good reputation. We adhere to the "service first, customer first" principle, so 姚风振 won the trust of customers all of the fan, ventilation equipment, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!