Fire shutter door repair _ Jinan giant light wind farm gate industry _ Laiwu fire doors

Fire shutter door repair _ Jinan giant light wind farm gate industry _ Laiwu fire shutter doors provide a light wind from the Jinan giant Tian Door Industry Co., Ltd .. Jinan giant light wind Tian Door Co., Ltd. (www.jgft.net) is specialized in the "fast shutter doors, rapid accumulation of doors, fire shutter doors, industrial doors," the enterprise, the company of "honesty, hard service" concept, for You provide the most quality products and services. Welcome to inquire! Contact: Li. Fire shutter is an emergency fire-fighting equipment, so if you do not fire fire shutter door repair, you can not know the quality of the product is good or bad, but the test of fire shutter technology is more professional, many developers do not know how to choose. There are some companies cut corners or take the "back door" produce counterfeit fire shutter fire shutter doors wholesale, coupled with market oversight fire shutter doors, fire shutter makes mixed products on the market. Dual dual curtain inorganic super fire shutter doors by two jamb fireproof curtain composed of an interval of the air layer of about 300mm, and a single electromechanical drive double driveshaft Buying fire shutter doors, two curtain synchronous lifting function, inorganic fire shutter with a steel fire shutter doors The main performance, fire longer than three hours, visit the thermal radiation and strong, can bring their own smoke, heat detectors work independently or with automatic fire alarm system linkage.