
Heavy-Duty Cast Iron Square Manhole Covers for Urban Areas. High Load-Bearing Capacity: Engineered with reinforced design for exceptional load capacity from A15 to F900. Anti-Slip Textured Surface: Grid pattern ensures strong grip in wet or slippery conditions. Corrosion Resistant Coating: Black coating or hot-dip galvanizing resists rust for over 30 years. Customizable Color and Logo: Supports custom anti-corrosion colors and customer logos upon request. International Standard Compliance: Meets EN 124 and ASTM A536 standards for global safety requirements. 1-Year Warranty Coverage: Covers non-human quality defects with replacement or compensation. OEM/ODM Service Available: Full customization support for designs and samples from customers.