Lockable D400 SMC GRP FRP Composite Material Square Round Manhole Cover

FRP (Fiber reinforced plastic) is a newly developed material of manhole covers. Before FRP came into existance, manhole cover were traditionally manufactured from concrete, steel fibre concrete,cast iron, ductile iron or PVC material, but these materials had their own shortcomings like low load carrying effciency. FRP is considered to be the best alternate material for manhole covers as it has longger lifespan and has the capacity to withstand heavy loads. Increase in heavy traffic and expensive metals completely replaced traditional covers with FRP manhole covers.

Fiberglass SMC manhole covers are mainly used for municipal roads, water supply, power supply, telecommunications, street, residential area, landscape planning, oil and gas production, chemical production, drain cover, sanitation and other projects.