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
---- 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.
