We supply round sewer ductile iron manhole cover
We devoted ourselves to casting industry for many years,has been exporting to Europe and Australia since 2001.
We are expecting become your long team partner, OEM & OED is welcomed.
1. High load strength Less noise and lower vibration transmissions.
2. Against theft,noise and rust.
3. Durable life.
4. Free design
Class A15 Area which can only be used by pedestrians and pedal cyclists
Class B125 Folkways, pedestrian areas and comparable areas, car parks or parking decks
Class C250 For gratings installed in the area of kerbside channels of roads which, when measured from the Serb edge, extend maximum 0.5 m into the carriageway  ;and maximum 0.2 m into the foot way
Class D400 Arrive ways of roads (pedestrian streets included), hard shoulders and parking areas for all types of road vehicles.
Class E600 Areas subject to high axle loads such as docks and airports
Class F900 Areas subject to very high axle loads such as airports