标准编号:GB/T 29047-2021
中文名称: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
英文名称:Prefabricated directly buried insulating pipes and fittings with polyurethane foamed-plastics and high density polyethylene casing pipes
发布日期:2021-08-20
实施日期:2022-03-01
代替标准:GB/T 29047-2012
全文页数:34