When rolling up and down, it is necessary to check whether there is a pile of doors, especially the fire-fighting rolling doors are linked with the fire-fighting system. The fire-fighting rolling doors are often damaged or tilted due to improper operation. When the curtain is opened and closed, pedestrians and running are strictly prohibited, because the curtain is connected by connecting parts when it is opened and closed, and there are few unsafe factors for the motor and transmission shaft. It is also a more important link to choose the louver of a car. Remember that the lifting force is not enough, because the bearing capacity of the car louver will gradually reduce the actual promotion effect with the passage of time, so the selection of materials should exceed the actual lifting force of the door as much as possible.

　　快门的推动装置,防止高压,将水动力防盗特性,此外还可以根据建筑物的不同特点选择内部和外部机构,包含三种不同的安装方式,打开书门上后,节省车库内部空间,而不是地球,雨,雪和其他碎片进入车库,美丽时尚的特点,这是人们选择快门的主要原因。

　　The pushing device of the shutter can prevent high pressure and prevent the water power from theft. In addition, the internal and external mechanisms can be selected according to the different characteristics of the building, including three different installation methods. After opening the book door, the interior space of the garage can be saved, instead of the earth, rain, snow and other debris entering the garage. This is the main reason why people choose the shutter.

　　书门质量很好,广泛应用于许多工厂,和我们的书门很方便使用,遥控器,不喜欢旧的门,可能需要手动开关,我们的大门都是远程,省事的同时,也是一个很可靠,你可以相信,我们的书门概要文件类型也很完整,无论你是需要什么样的,我们可以满足您的满意。

　　The quality of the book door is very good, widely used in many factories, and our book door is very convenient to use, remote control, do not like the old door, may need manual switch, our door is remote, convenient, safety is also a very reliable, you can believe that our book door profile type is also very complete, no matter what you need, we can meet your satisfaction.

　　在选择卷帘门时，要观察卷帘门是否可以手动操作，以及保证手动操作均匀稳定快速性的灵活性。为了保证卷帘门的，我们要求卷帘门具有双面自锁功能，并保证卷帘门不会因为惯性而自由滑动。卷帘门的结构应足够精确，其散热应符合要求。没有链条，带式卷帘门运动寿命会更长。对普通卷帘门厂家购买会降低购买劣质产品的概率。

　　When selecting the rolling shutter door, it is necessary to observe whether the rolling shutter door can be operated manually and ensure the flexibility of uniform, stable and fast manual operation. In order to ensure the safety of the rolling shutter, we require the rolling shutter to have double-sided self-locking function and ensure that the rolling shutter will not slide freely due to inertia. The structure of rolling shutter door shall be accurate enough and its heat dissipation shall meet the requirements. Without chain, the moving life of the belt rolling shutter door will be longer. The purchase of ordinary rolling shutter door manufacturers will reduce the probability of purchasing inferior products.