CNBM ductile iron manhole covers and gully gratings are as per BS EN124 international standard, loading capacity ranging from A15, B125, C250, D400, E600 to F900. The materials of our manhole covers and gully gratings include composite resin, gray cast iron, ductile iron, stainless steel.

We take pride to introduce ourselves as the leading manufacturer and professional supplier of various manhole covers and gully grating in China with total annual capacity 50,000 MT.