现行

T/LJH 022-2021

预制直埋球硅保温管及管件

2021-02-03

现行

T/CDHA 2-2019

架空和综合管廊预制蒸汽保温管及管件

2019-07-02

现行

CJ/T 200-2004

城镇供热预制直埋蒸汽保温管技术条件

2004-12-02

现行

T/LJH 005-2018

球硅聚氨酯复合防腐预制直埋保温管

2018-04-10

现行

T/CDHA 1-2019

架空和综合管廊预制热水保温管及管件

2019-07-02

现行

GB/T 34611-2017

硬质聚氨酯喷涂聚乙烯缠绕预制直埋保温管
Rigid polyurethane spray polyethylene winding prefabricated directly buried insulating pipes

2017-10-14

现行

CJ/T 246-2007

城镇供热预制直埋蒸汽保温管管路附件技术条件
Technical specification of preformed directly buried steam insulating pipeline accessories for municipal heat-supply

2007-04-09

现行

GB/T 39246-2020

高密度聚乙烯无缝外护管预制直埋保温管件
Prefabricated directly buried insulating fittings with seamless high density polyethylene casing pipe

2020-11-19

现行

T/WJGY 006-2021

聚氯乙烯管外护硬质聚氨酯泡沫塑料预制保温管

2021-11-16

现行

T/WJGY 004-2022

聚丙烯复合保温管

2022-07-04

现行

T/WJGY 004-2020

聚丙烯复合保温管

2020-10-15

现行

T/CIATA 0021-2016

钢管喷涂缠绕成型预制直埋保温管作业技术规范

2016-10-17

现行

CJ/T 114-2000

高密度聚乙烯外护管聚氨酯泡沫塑料预制直埋保温管
Preformed directly buried insulating pipes for polyurethane [PUR] foamed-plastics and high density polyethylene [PE] protect pipes

2000-04-12

现行

T/SDAS 839-2024

聚氯乙烯外护管硬质聚氨酯泡沫塑料预制直埋保温管及管件

2024-05-24

现行

T/SCEA 0012-2023

复合防腐预制直埋蒸汽保温管及管路附件

2023-03-13

现行

CJ/T 246-2018

城镇供热预制直埋蒸汽保温管及管路附件

2018-08-24

现行

GB/T 29046-2023

城镇供热预制保温管道技术指标检测方法
Detection methods of technical specification for pre-insulated district heating pipes

2023-09-07

现行

CJ/T 155-2001

高密度聚乙烯外护管聚氨酯硬质泡沫塑料预制直埋保温管件
Preformed directly buried insulating fittings with polyurethane [PUR] foamed-plastics and high density polyethylene [PE] casing pipes

2001-09-30

现行

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

2021-08-20

现行

CJ/T 129-2000

玻璃纤维增强塑料外护层聚氨酯泡沫塑料预制直埋保温管
Preformed directly buried insulating pipes for polyurethane (PUR) foamed plastics and glass fiber reinforced plastics protect layers

2001-02-05