D400 - BS EN124 classification Group 4; Heavy duty manhole
& gully top.
Suitable for use in carriageways
and roads accessed by all types of road vehicles; from hard
shoulder and parking areas to dual carriage way and motorway.
We recommend our UNITE Anti-Flex + or our Anti-Flex Highway
in areas in areas of high traffic intensity to prolong the
lifespan of the access fixture.
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