the Ductile Cast iron Manhole Covers and frames and gully and grate which are produced by our company with below advantages:

Security,prevent the cover being stolen

No noise.

High load-bearing

Corrosion resistance

Safe

1. According to BS EN124:1994,

2..the material grade: GGG500/7,

3.Coating: black bitumen, epoxy powder.

4:Ductile iron manhole covers and gully grates are divided into the following classes:

A15, B125, C250, D400, E600 and F900.

Areas which can only be used by pedestrians and pedal cyclists.

Footways, pedestrian areas and comparable areas, car parks or car parking decks.

for gully tops installed in the area kerbside channels of roads which when measured from the kerb edge, extend a maximum of 0.5m into the carriageway and a maximum of 0.2m into the footway.

Carriageway of roads (including pedestrian street), hard shoulders and parking areas, for all types of road vehicles.

Areas imposing particularly high wheel loads, e.g. Docks, aircraft pavements.