
Gully Tops and Manhole Tops for Vehicular and Pedestrian Areas Part 5: Gully Tops and Manhole Tops Made of Composite Materials
出版:National Standards Authority of Ireland

专家解读视频
Pertains to manhole tops and gully tops made of composite materials C1, C2 and C3 by using suitably controlled automatic processes that produce a single structure and that do not contain multiple pieces bonded together, 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.