Brief: The manhold cover is cast by pressure mould with composite material of regenerated resin, compared with the similar products with cement or settel, it has better capability of anti-impact and anti-causticity and more light in unit weight for easy handle, and can be in different colors. Properties: Theftproof, Wearable, Corrosion-resistant, Environment-friendly,l High loading capacity, Non-slip, Non-turn-over, The seat and cover tightly engaged, Slot-fixing structure allows firm mounting, Elegant in design