... : FRP/GRP Manhole Cover 2, Spec: D400 DIA700 3, Material: FPR/GRP 4, Class: A15,B125, C250, D400 5, Standard: EN124 Name: FRP/GRP Manhole CoverSpec: All ... , WE HAVE OVER 10 YEARS EXPERIENCE FOR EXPORT MANHOLE COVER. WELCOME TO CONTACT US!WWW.TSINTER.CNTSINTER.EN.ALIBABA.COM ROUND FRP/GRP MANHOLE COVER