Square Composite Manhole Cover En124 D400/Plastic Manhole Cover/Waterproof Manhole Cover

Square Composite Manhole Cover En124 D400/Plastic Manhole Cover/Waterproof Manhole Cover. Comprehensive Load Grades: Available in A15 to F900 grades covering 1.5 to 90 tons load capacity. Anti-Theft Design: Built-in concealed locks and low-recycling-value material prevent theft. Noise Reduction Technology: EPDM rubber pad reduces noise from 70-80 dB to 50-60 dB. Customizable Color: Color options include Black and customized colors per customer requirements. Long Service Life: Corrosion resistance 5x steel and 10x gray cast iron; life exceeds 30 years. Full Customization: Custom sizes, logos, and text patterns available for non-standard requirements.