BS 12/30265313 DC
BS 12/30265313 DC
BS EN 124-6. 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)
standard published 11/14/2012 by British Standards Institution