Ductile gratings, with the full name of Ductile iron manhole square covers (abbreviated as FRP), is a composite material with synthetic resin as the matrix and glass fiber and its products as the reinforcing material....
The biggest difference between the nodular cast iron manhole cover and the ordinary nodular cast iron manhole cover is that there is a more stable lift on the material used....
Ductile iron manhole covers are important facilities on the road, and the quality of the nodular cast iron manhole cover directly determines whether or not the pedestrian will have an accident when the path is passed. ...
Botou City Wangwu Town Tianlong Casting Factory mainly engages in production of EN124 standard series products and gray cast ion and nodular cast iron products, including thousands of varieties such as A15, B125, C250, D400, E600 and F900 trench well lids and trench dandruff combs included in the EN124 standard series products.