Angle iron flange duct sales, Jie Weinuo brand duct manufacturers have certified east angle iron flange duct provided by 捷维诺 (Tianjin) Co., Ltd. Jie Weinuo (Tianjin) Co., Ltd. (www.jieweinuo.com) is specialized in the "total of flange plate duct dampers, fans, ventilation ducts, evaporative air conditioners, cable tray" of the enterprise, the company adhering to the "integrity management, service intentions, "the idea, to provide you with the highest quality products and services. Welcome to inquire! Contact: Su Wei. Star Industrial Co., Ltd. [Jie Weinuo recommended angle iron flange duct] inner tube with a screw through the support wire reinforcement, its special washers external duct insulation flange angle iron into the wind pipe wall duct cheap, do not duct insulation or inner duct insulation is placed in the duct wall, through wire screw should be set at the center of the angle iron flange duct duct sales, duct section is large, you should add one at each side near the flange screw support through wire reinforcement. Duct section> 1250 * 630, in order to maintain the adjacent wall perpendicular angle iron flange duct 50, preferably in the range 90 ℃ duct corners with oblique support reinforcement. MV and HV systems duct, its length is greater than 1250mm, reinforced frame reinforcement should be used. Star Industrial Co., Ltd. [Jie Weinuo recommended angle iron flange duct] Jie Weinuo duct flange angle iron production, a total of flange plate duct, spiral duct production. Also processing fees low.