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This trash can could collect the trash bag at the bottom of it, and that made you can change the trash bag easily. When the trash can is filled with garbage, you just need to take out the trash bag, and at the same time the new trash bag could be pulled out to the top, then you only have to cover it well. It will save your time to get the trash bag from other place, and you don;t have to put the new trash bag into the can which it’s inconvenient.
Central South University of Forestry and Technology
Yang Tong, Li Xiang, Zhou Yangfeng.