SMC,FRP,GRP.DMC,BMC Manhole Cover 1-EN124 standard 2-A15,B125,C250,D400 3-ISO9001:2008 SMC,FRP,GRP,DMC,BMC,GRC Manhole Cover EN124 Clear Open Size: 300-700mm round type Clear Open Size: 280*280-560*860mm square type A15;B125; C250; D400SMC,FRP,GRP,DMC,BMC,GRC Manhole Cover EN124 SMC Composite Round Manhole Cover to EN 124 with A15+, B125, C250, D400Cover sizeClear openingLoading capacitySealing/ ...