[Jie Weinuo Industrial Star recommendation - spiral duct] Jie Weinuo Industrial production of spiral duct. Complete specifications spiral duct Tianjin spiral duct outlets, large diameter spiral duct Tianjin spiral duct, spiral duct fabrication and installation of ventilation engineering. [Jie Weinuo Industrial Star recommendation spiral duct] spiral duct same cross-sectional area of ??Tianjin spiral duct much money, an aspect ratio of 1: 3 ratio of the circumference of a rectangular duct spiral duct week long 40%, timber Province; Similarly, since the circumferential length of the spiral duct insulation timber can be reduced accordingly. Tianjin spiral duct, spiral duct production in Tianjin, Tianjin galvanized coil selected by 捷维诺 捷维诺 Industries (Tianjin) Co., Ltd. Jie Weinuo (Tianjin) Co., Ltd. (www.tjjwnsy.com) in fan, ventilation equipment in the fields devoted boundless enthusiasm and passion, Jie Weinuo Industries has been customer-centric, for customers to create the concept of value, quality, service to win market, and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcome inquiries, contact: Su Wei.