选购伸缩门的注意事项：
Precautions for purchasing telescopic doors:
第一、如果伸缩门是平移门形式的话开启的一方一定要预留2倍门体的距离，从而确保门体的完全打开。
First, if the telescopic door is in the form of a sliding door, the opening party must reserve a distance of twice the door body to ensure that the door body is fully opened.
第二、伸缩门的安装一定要在门洞的中间或者是内测，不过一般在6米空间的范围之内的都是习惯性的固定在内测，这样才能是框格护坡模具 箱体护坡模具 华尔街铜牛 电阻柜 接地电阻柜 电缆保护接地箱 隔离墩模具 化粪池模具伸缩门的门体收缩自如，保证门口不会减小，大小车辆的出入才能进入自如，如果门洞大于6米的话，这方面的因素可以不要考虑，但是如果固定在内侧的话，订购事的门体尺寸是门洞的尺寸加上门体收缩后的尺寸。
Second, the installation of the telescopic door must be in the middle of the door opening or in the internal measurement, but generally within the range of 6 meters, it is habitually fixed in the internal measurement, so that the door body of the telescopic door can contract freely, so as to ensure that the door will not be reduced, and the access of large and small vehicles can enter freely. If the door opening is greater than 6 meters, this factor can not be considered, but if it is fixed inside, The door size of the order is the size of the door opening plus the size of the door body after shrinkage.
第三、摆折形式的伸缩门是不受限制的。
Third, the swing and fold form of the telescopic door is unlimited.