Ductile Iron Round Manhole Cover with Square Frame BS En124-2 Grid Anti Slip Surface for Municipal Sewer Rainwater Urban Road

Ductile Iron Round Manhole Cover with Square Frame BS En124-2 Grid Anti Slip Surface for Municipal Sewer Rainwater Urban Road. High Strength Material: Cast from premium GGG50 ductile iron for excellent compression and shock resistance. D400 Load Standard: Fully complies with BS EN124-2, suitable for motor carriageways and heavy traffic highways. Anti-Slip Surface: Grid anti-slip texture provides reliable friction for vehicles and pedestrians in wet weather. Stable Structure Design: Round cover inside square frame minimizes displacement risk and enhances installation stability. Custom Logo Casting: Support for custom cast-in logos, text markings, and project codes based on drawings. Anti-Corrosion Treatment: Black bitumen painting ensures good anti-rust performance for underground and outdoor use. Third-Party Inspection: Load-bearing and dimension tests can be witnessed by SGS, BV, or other third-party institutes. Anti-Noise Design: Optimized fitting tolerance reduces rattling noise under vehicle rolling.