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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 38705-2020 |
Classification and basic requirements for urban heat supply facilities operation safety information 城镇供热设施运行安全信息分类与基本要求 |
China National Standards Classification requirements urban |
 English PDF |
| GB/T 31171-2014 |
Classification and requirements for urban public leisure space 城市公共休闲空间分类与要求 |
China National Standards Classification requirements urban |
English PDF |
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