This product is made through a one-step injection/molding process using high-performance polymer alloy materials. It combines the lightness of plastic with the strength of metal, resulting in a tough and resilient texture with excellent impact resistance. It has stable load-bearing performance (suitable for pedestrian and light vehicle scenarios). The core advantages are significant: resistant to acid and alkali corrosion, moisture-proof, mold-proof, and can withstand long-term outdoor dampness and chemical environments without aging or cracking; the weight is only 1/2 of that of traditional cast iron covers, allowing one person to easily carry and install it, significantly reducing construction and maintenance costs; it contains no metal components, has excellent insulation properties, eliminates the risk of electric shock, and is suitable for power and communication-related scenarios; it has no recycling value, addressing the issue of theft at its source and ensuring the safety of facilities; the surface features a non-slip texture design, making it easy to walk without slipping, and the cover seat fits tightly, ensuring quiet passage. The product size specifications can be customized as needed. The edge sealing is in close contact, effectively preventing dust, water, and foreign object intrusion, protecting the cables or drainage systems below. It is widely used in cable trenches, drainage ditches, residential areas, municipal sidewalks, squares, industrial parks, communication base stations, etc., and is an efficient and environmentally friendly preferred alternative to cast iron and cement covers.