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The carpet of door is a new design, it uses a new type of glue, making it firmly glued on the door. Its overall shape for the cube, including shell, shaft, plastic film and four parts of the motor, through very simple means of bonding. Waterproof cloth wrapped around the shaft and shaft, pulling tarps to form the most simple pull axis. On rainy days, protection of goods is important, and it is very convenient to use, just gently pull on things, rather than just the touch of a button. And it's not just putting something so simple, it can prevent the packing bag of dirty, realize the benefits of secondary use.
Chengdu University of technology