Our resin concrete pit covers are prefabricated in workshops according to customers' demand, therefore the quality of the products are guaranteed. The products are made of resin concrete with sands and pebbles as main materials and unsaturated resin and coagulator as accessories, which is capable of product characteristics, reduced production cost, unrecycable and against theft, reduced cost of reparing and replacing and environmentally-friendly. Our rpoducts have acquired ISO 9001 and met EN124 standard. We also offer OEM. If you are looking for better manhole covers at lower price, please do not hesitate to contact us.