SMC FRP Manhole cover and gratings 1. accordingly to EN124, 2.ISO 9001:2000 certificate. We can offer A15,B125,C250,D40 FRP,GRP, SMC , DMC,BMC Manhole covers, gratings,gully tops and Tress grilles, and etc, Which are made from composite material like glass fiber,resin,quartz sand and so on. Our products are produced srictly according to EN124, we can offer A15,B125,C250 and D400 load ability ...