Tianjin angle iron flange duct _ _ Jie Weinuo angle iron flange duct ventilation engineering (certified merchants) are provided by 捷维诺 (Tianjin) Co., Ltd. Jie Weinuo (Tianjin) Co., Ltd. (www.jieweinuo.com) is a professional engaged in "a total flange duct dampers, fans, ventilation pipes, evaporative air conditioners, cable bridge" company. Since its inception, we adhere to the "honesty, sound management" approach, the courage to participate in healthy competition in the market, so that the "Jie Weinuo" brand has a good reputation. We adhere to the "service first, customers first" principle, so 捷维诺 Industries has won numerous customer's trust in fans, ventilation equipment, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you! [Jie Weinuo recommend to you the star product - a total of flange duct] galvanized duct production ceiling must M10 * 80 bolts anchoring, and for different specifications of galvanized duct, we have to adopt according to specifications different thicknesses of the plate. On the basis of the drawings are familiar with the size and layout of the duct on by skilled master craftsmen discharge line is expected to open to ensure duct fabrication and installation comply with the relevant standards. Galvanized duct at the time of installation should start with the interface and elbows, reducers began to start, are not free to change the elbow, adjustable connector size, the elbow should ensure concentric inner and outer surface, otherwise the edge grew to 500MM when setting guide vanes, under normal circumstances should not be used. [Jie Weinuo Industrial Co., Ltd. Star recommendation spiral spiral duct] shall comply with the requirements of this standard angle iron flange duct prices and comply with prescribed procedures approved drawings and technical documents. When both parties have the technical agreement, press both the technical protocol design and manufacturing. 1, spiral size, shape spiral length 1.1 1.1.1 usual length: 6 ~ 12m angle iron flange duct processing, by mutual agreement, the length can be lengthened or shortened. 1.1.2 Length Length: cut length should be within the range of Jinghai angle iron flange through a long duct, which limit deviation of ± 500mm. 1.1.3 fine cut length: By mutual agreement, the length limit deviations can supply more stringent precision cut lengths than the provisions of 1.1.2. 1.2 roundness spiral pipe end 100mm in length, the maximum outer diameter of the pipe shall be 1% larger than the nominal outside diameter of the smallest outer diameter shall not be smaller than the nominal outside diameter of 1%. Use of the ability to measure the maximum and minimum outside diameter caliper, bar gauge or other measurement tool.