Star Industrial Co., Ltd. [Jie Weinuo recommend spiral duct] galvanized spiral duct widely used in hotels, shopping malls, textile, chemical, petrochemical, machinery, instruments, electronics, pharmaceuticals, tobacco, food, medical, warehouse, office as well as the subway, air defense, basements and other engineering air supply, exhaust, exhaust pipe. Star Industrial Co., Ltd. [Jie Weinuo recommend spiral duct ventilation ducts] Jie Weinuo processing; spiral duct, galvanized duct, a total of flange plate duct, galvanized duct system, plans to complete the processing specifications. Nanhe Nanhe spiral duct production spiral duct, spiral duct preferred Jie Weinuo Industries, Procyon spiral duct installation provided by 捷维诺 (Tianjin) Co., Ltd. Nanhe spiral duct, spiral duct preferred Jie Weinuo Industries, Procyon spiral duct installation is Jiewei Nuo (Tianjin) Co., Ltd. (www.jieweinuo.com) this year introduced a new upgrade, the above picture is for reference only, please Phone call or pictures on this page, for the latest information, contact: Su Wei.