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	标准编号	标准名称	发布部门	发布日期	状态
	ONORM EN 489-1:2020	District heating pipes — Bonded single and twin pipe systems for buried hot water networks — Part 1: Joint casing assemblies and thermal insulation for hot water networks in accordance with EN 13941-1	Osterreich..	2020-03-25	现行
	ONORM EN 15698-2:2020	District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 2: Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene	Osterreich..	2020-03-22	现行
	UNE EN 448:2017	District Heating Pipes - Preinsulated Bonded Pipe Systems For Directly Buried Hot Water Networks - Fitting Assemblies Of Steel Service Pipes, Polyurethane Thermal Insulation And Outer Casing Of Polyethylene	Asociacion..	1900-01-01	现行
	PREN 448:2018	District Heating Pipes - Preinsulated Bonded Pipe Systems For Directly Buried Hot Water Networks - Fitting Assemblies Of Steel Service Pipes, Polyurethane Thermal Insulation And Outer Casing Of Polyethylene	Comite Eur..	1900-01-01	现行
	PREN 489-1:2017	District Heating Pipes - Bonded Single And Twin Pipe Systems For Buried Hot Water Networks - Part 1: Joint Casing Assemblies And Thermal Insulation For Hot Water Networks In Accordance With En 13941-1	Comite Eur..	1900-01-01	现行
	NEN EN 489-1:2017	District Heating Pipes - Bonded Single And Twin Pipe Systems For Buried Hot Water Networks - Part 1: Joint Casing Assemblies And Thermal Insulation For Hot Water Networks In Accordance With En 13941-1	Nederlands..	1900-01-01	现行

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