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? ? ? ? 1 . Moderate capacity?： Street and park trash cans need to have a certain capacity to accommodate high foot traffic, but also be easy for sanitation workers to carry.?

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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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