Lightweight and Easy to Handle: Significantly lighter than metal or concrete covers, allowing for easy and safer single-person removal and replacement during maintenance, reducing the risk of manual handling injuries.
High Strength-to-Weight Ratio: Despite being light, their reinforced composite structure provides high load-bearing capacity, meeting various international load standards (e.g., up to D400 or F900 for heavy traffic areas).
Zero Scrap Value (Anti-Theft): Since the composite material has no resale value as scrap metal, it eliminates the problem of manhole cover theft common with cast iron