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NF A48-888-2020  Earthquake-resistant and subsidence-resistant design of ductile iron pipelines NF A48-888-2020  Earthquake-resistant and subsidence-resistant design of ductile iron pipelines

NF A48-888-2020 Earthquake-resistant and subsidence-resistant design of ductile iron pipelines

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  • 标准编号:NF A48-888-2020
  • 标准状态:现行
  • 更新时间:2023-10-14
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