[Jie Weinuo Industrial Star recommendation - spiral duct] galvanized spiral duct, hangers should be according to GB's portfolio selection and specification strength and stiffness to adapt forms and specifications. For longer than 2500mm diameter or side of the extra large, overweight and other special support galvanized spiral duct, the hanger should design requirements. [Jie Weinuo Industrial Star recommendation - spiral duct] Jie Weinuo production of spiral duct Tianjin spiral duct processing, also known as thin-walled spiral duct, spiral duct ventilation for steel mills, airports ventilation, ventilation galleries, spiral convenient and beautiful duct installation. Tianjin Tianjin spiral duct production _ _ Jie Weinuo spiral duct ventilation provided by Toyota Industries Case 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!