We can supply many kinds of GRP/FRP/Composite Manhole Cover and Rain-grating, our products have following advantages: 1. Strictly manufactured according to ISO 9001: 2000 and EN124. 2. High load capacity 3. Contain no metal, no scrap value ,so nobody will steal it. 4. Long service life (min. 30 years) 5. Well sealed, no noise pollution or rebound 6. Good wear and corrosion resistance, never rust 7. Special relief sculpture on surface with good decorative effect 8. Perfect design and rich colors individually.