[Jie Weinuo to recommend the star product - flange plate duct] Jie Weinuo Industrial processing galvanized duct flange, galvanized shear bending, fabrication and installation of ventilation systems. [Jie Weinuo to recommend the star product - flange plate duct] Jie Weinuo total of flange plate duct, automatic air duct line plant ventilation ducts, not only reduces the cost, quality and appearance are first, Galvanized duct at the time of installation should start with the interface and elbows, reducers began to start to build ventilation ducts, not free to change elbows, reducers size. [Jie Weinuo Industrial Star recommendation - flange plate duct] consists of a total of flange angle code, flange clamps ventilation pipeline projects, and with the wind pipe flange integrally connected, although the cost of this form representing the wind Low (reduced angle amount, reduce the amount of manual production angle flange), but the practical application of it is better angle flange firmly, air leakage is large ventilation ducts, and must be processed through a machine, handmade hardly achieve its production, generally apply only to new air system, air conditioning systems, air exhaust system or frequently used angle flanged pipe.