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Standard
| GB/T 23858-2009 Manhole cover (English Version) |
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Detail of GB/T 23858-2009
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Introduction of GB/T 23858-2009
本标准规定了检查井盖的术语和定义、分类和结构形式、材料、要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于安装在绿化带、人行道、非机动车道、机动车道、停车场、码头、机场跑道等地面井座净开孔(co)不大于900mm 的金属及非金属材料检查井盖。
Contents of GB/T 23858-2009