... provided according to BS EN124:1994, the material grade GGG500/7, coating black bitumen, testing before shipping for the smooth surface ... roads700*700,600*800 ...D400Road,hard shoulders etc.850*850, 920*920 ...E600Docks,aircraft pavements etc.as per your demandsF900Aircraft pavements etc ... .as per your demands EN124 GGG500/7 Cast Iron buy Manhole Cover B125