NEN EN 124-4:2015现行
Gully Tops And Manhole Tops For Vehicular And Pedestrian Areas - Part 4: Gully Tops And Manhole Tops Made Of Steel Reinforced Concrete
出版：Nederlands Normalisatie Instituut
专家解读视频
基本信息
标准编号： NEN EN 124-4:2015
标准类别：Standard
出版单位：Nederlands Normalisatie Instituut
标准页数：32
标准简介
Pertains to precast gully tops and manhole tops made of steel reinforced concrete with a clear opening up to and including 1000 mm for covering gullies, manholes and inspection chambers for installation within areas subjected to pedestrian and/or vehicular traffic.
标准备注
Supersedes NEN EN 124. (07/2015)
