埋地通信用多孔一体塑料管材 第2部分：聚乙烯（PE）多孔一体管材埋地通信用多孔一体塑料管材 第2部分：聚乙烯（PE）多孔一体管材Buried multi-hole plastics pipes for communication Part 2: Polyethylene (PE) multi-hole pipes
埋地通信用多孔一体塑料管材 第1部分:硬聚氯乙烯(PVC-U)多孔一体管材
Buried multi-hole plastics for communication Part 1: Unplasticized polyvinyl chloride (PVC-U) multi-hole pipes
2004-12-14
UNE-EN 13244-2-2003
Plastics piping systems for buried and above-ground pressure systems for water for general purposes, drainage and sewerage - Polyethylene (PE) - Part 2: Pipes
通用排水和污水用埋地和地上压力系统用塑料管道系统.聚乙烯（PE）.第2部分:管道
2003-06-27
DIN EN 17415-2
District cooling pipes - Bonded single pipe systems for directly buried cold water networks - Part 2: Factory made fitting assemblies of steel or plastic service pipe, polyurethane thermal insulation and a casing of polyethylene
区域冷却管.直埋冷水管网用粘结单管系统.第2部分:钢或塑料供水管、聚氨酯隔热和聚乙烯套管的工厂制配件组件