BS EN 488-2011 区域供暖管道——直埋热水管道网络预保温粘合管道系统——用于供水钢管、聚氨酯保温层以及聚乙烯套管的钢阀装配(中文版)
英文名称
District heating pipes — Preinsulated bonded pipe systems for directly buried hot water networks — Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene