GB/T 29047-2021高密度聚乙烯外护管硬质聚氨酯泡沫塑料预制直埋保温管及管件Prefabricated directly buried insulating pipes and fittings with polyurethane foamed-plastics and high density polyethylene casing pipes GB/T 29047-2021高密度聚乙烯外护管硬质聚氨酯泡沫塑料预制直埋保温管及管件Prefabricated directly buried insulating pipes and fittings with polyurethane foamed-plastics and high density polyethylene casing pipes

GB/T 29047-2021高密度聚乙烯外护管硬质聚氨酯泡沫塑料预制直埋保温管及管件Prefabricated directly buried insulating pipes and fittings with polyurethane foamed-plastics and high density polyethylene casing pipes

  • 标准类别:[GB] 国家标准
  • 标准大小:
  • 标准编号:GB/T 29047-2021
  • 标准状态:
  • 更新时间:2022-03-18
  • 下载次数:
标准简介

GB/T 29047-2021高密度聚乙烯外护管硬质聚氨酯泡沫塑料预制直埋保温管及管件Prefabricated directly buried insulating pipes and fittings with polyurethane foamed-plastics and high density polyethylene casing pipes

标准截图
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