Our manhole covers(shorted for GRP manhole cover) are made from composite material such as glass fiber,resin,quartz,corundum&so on.
Applying wear-resistant and climate-resistant materials con the relief sculpture layer so thant the products can be long-term used under different environment.
Applying continuous reinforced fiber on the structure layer to ensure the products having sufficient sustaining ability.
Advantage of our composite manhole cover: