
Gully Tops And Manhole Tops For Vehicular And Pedestrian Areas - Part 6: Gully Tops And Manhole Tops Made Of Polypropylene (Pp), Polypropylene With Mineral Modifiers (Pp-Md), Polyethylene (Pe) Or Polyvinyl-Chloride (Pvc-U)
出版:Nederlands Normalisatie Instituut

专家解读视频
Pertains to gully tops and manhole tops with a clear opening up to and including 500 mm for installation within areas subjected to pedestrian and/or vehicular traffic of class A 15 and class B 125.
PREN 124-6:2012 - Identical