给水用钢骨架聚乙烯塑料复合管
Steel reinforced polyethylene plastic pipes for water supply
2016-08-08
BS EN 17415-2-2021
District cooling pipes. Bonded single pipe systems for directly buried cold water networks-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
2021-09-07
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