We recommend the German EFAFLEX fast industrial safety door represented by Shuangshida (Beijing) Technology Co., Ltd.
Everyone who answered is a little ignorant.
The functions of rolling shutter doors are heat preservation, windproof, dustproof and anti-theft.
However, good products must be used in highly frequently used places.
I know that there is a company in Beijing, Shuangshida (Beijing) Technology Co., Ltd., which is the officially authorized agent of the German EFAFLEX fast safety industrial door manufacturer. The efaflex fast industrial safety doors sold by their company are completely imported.
The doors they sell include hard metal fast doors
Soft fast doors
Because they use a frictionless spiral track lifting method, they are Which one is the fastest in the global door industry. Their doors can rise as fast as 6 meters per second. It should also be said that the symbol of Germany's EFAFLEX fast industrial safety door is the golden Jaguar
Not only is it fast, in an emergency, the EFAFLEX door can be opened with just a slight pull of the handle. The door panel immediately rises and opens. This is their patented technology.