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? ? 2. Durability?：Due to the changeable outdoor environment, the trash bin needs to have good weather resistance and corrosion resistance to cope with natural conditions such as sun, rain, etc.
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? ? 3. Easy to clean?：Litter bins should be designed to be easily cleaned and maintained to maintain public hygiene and a neat appearance.
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? ? 4. Security?：The design of the trash can should be safe to use, avoiding injuries caused by sharp edges or heavy lids.
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? ? ?5.?Classification function?： In order to promote garbage classification, it is best for trash bins to have classification functions, such as recyclables, other garbage, etc.
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