Rolling shutter doors are widely used in the industrial field. For example, factories, warehouses, logistics centers, and other places require large areas of doors. The rolling shutter doors can be raised or lowered at any time, saving space. Moreover, roller shutter doors are mostly made of metal, which is sturdy and durable, and can withstand harsh weather conditions such as high temperature, cold, wind, and rain, ensuring the safety of property in the industrial field.