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In order to save energy, many street lights powered by natural energy have been introduced. Solar street lights have been used in our daily lives. This new type of trash can is another example of environmental protection that turns waste into treasure. It uses waste-generated biogas to provide energy support for street lighting work. As a result, the street lamp was a trash can, which not only saved space, but also reduced the intensity of garbage disposal in the sanitation department to some extent.
Ferrous Sulfate Co., Ltd. , http://www.nssulphate.com