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Chinese National Standard Category: Heat supply and heating engineering

English Title: Prefabricated directly buried insulating pipes and fittings with polyurethane foamed-plastics and high density polyethylene casing pipes
Chinese Title: 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
Standard No.: GB/T 29047-2021
Category No.: P46
Issued by: SAMR, SAC
Issued on: 2021-08-20
Implemented on: 2022-3-1
Status: valid
Superseded by:
Superseded on:
Abolished on:
Superseding:GB/T 29047-2012 Prefabricated directly buried insulating pipes and fittings with polyurethane [PUR]foamed-plastics and high density polyethylene [PE]casing pipes
Word Count:16500 words
Similar Standards: T/CCASC 5001-2021   T/CECA-19G   T/CECA-G0094-2020   DB37/T 3799-2019   T/CECA-G0095-2021   T/CECA-G0175-2022   GB/T 29046-2023   GB/T 43097-2023   GB/T 28638-2023   GB/T 29047-2021   GB/T 40379-2021   GB/T 40068-2021   GB/T 32224-2020   GB/T 39286-2020   GB/T 39802-2021   GB/T 39288-2020   GB/T 39246-2020   GB/T 21087-2020   GB/T 38705-2020   GB/T 38588-2020  
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