NF P98-311-6*NF EN 124-6:2015 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)
2015NF P98-311-6*NF EN 124-6:2015 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)