[Jie Weinuo Industrial Star recommendation - flange plate flange plate duct] mainly by the Corner, flange clamps, and the ventilation duct flanges integrally connected duct Although this form of low cost (reducing the amount of angle iron, reducing the amount of manual production angle flange) exhaust ventilation equipment, but it is better to practice solid angle flange, air leakage is large, and must be processed by the machine, handmade hardly realize it production of residential ventilation equipment, usually applied only to new air system, air conditioning system, air exhaust system still often flanged pipe with angle. [Jie Weinuo to recommend the star product - the price of black and white iron duct unique advantages] Duct Fabrication and installation should comply with design drawings, contracts, and related technical standards regulations, changes must happen to change the design or contract notice or technology approved visa. 2.2 duct system before construction, construction units and construction units should, supervision, general contracting and design units to coordinate with other pipeline piping duct position to approve aside empty and so on. Construction should [捷维诺 to recommend the star product - a total of flange duct] Jie Weinuo Industrial Co. install ventilation equipment, gained the advantage China's Top 100 enterprises integrity, Jie Weinuo Industries in 2014, 1, workshop covering 40 acres, good production Huang Jing. 2, advanced automated production equipment, quality is more clearance. 3, a professional designer, and honest service. Ventilation plant ventilation equipment _ _ ninghe Jie Weinuo Industrial Case Triumph Imperial Hotel offers from 捷维诺 (Tianjin) Co., Ltd. Jie Weinuo (Tianjin) Co., Ltd. (www.tjjwnsy.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 Jie Weinuo Industrial and you hand into the brilliant, for a better future!