Preinsulated bonded pipe systems for underground hot water networks; fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of high density polyethylene
标准号:PREN 448-1990
标准名称: 地下热水管网的隔热物粘结管道系统.钢制供水管配件、聚氨基甲酸乙酯热绝缘材料以及高密度聚乙烯外壳
英文名称:Preinsulated bonded pipe systems for underground hot water networks; fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of high density polyethylene
标准类型:国外标准
标准状态:现行
中国标准分类号(CCS):Q83