EN 124-6:2015 溝壑和人孔頂部車輛和行人區-第6部分:由丙烯(PP)聚乙烯(PE)或聚氯乙烯(PVC)(PVC-U)復合材料鑄成的溝壑和人孔頂
Gully tops and manhole tops for vehicular and pedestrian areas - Part 6: Gully tops and manhole tops made of polypropylene (PP)@ polyethylene (PE) or unplasticized poly(vinyl chloride) (PVC-U)