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With the decreasing phenomenon of forest resources, some phenomenon often appears, such as air pollution and animal homelessness. Saving paper is the conservation of resources. In this design， both ends of the toilet paper are printed that kind of patterns, so that people could aware that the trees are being felled. Thus conscious of saving paper and protecting the environment and the use of the resources are concerned by the people.
He Sun,Tao Fu,Xidong Zheng,Yang Liu