2026 New FRP Manhole Cover 600mm Round Watertight SMC Manhole Cover D400 Anti-Corrosion Manhole Cover Lockable

2026 New FRP Manhole Cover 600mm Round Watertight SMC Manhole Cover D400 Anti-Corrosion Manhole Cover Lockable. 100% Waterproof Design: Unique rubber hollow design with EPDM material and double sealing rings ensures complete watertight performance. UV Resistance & No Fade: Exclusive recipe prevents fading for more than 3 years, solving the common fading problem of SMC products. D400 Loading Capacity: Meets EN124 D400 standard, suitable for road traffic safety and heavy-duty applications. Long Service Life: Designed for a service life exceeding 25 years with durable aluminum alloy lifting holes. Anti-Slip Surface: Special surface design provides excellent anti-slip properties for enhanced safety. OEM/ODM Accepted: Flexible customization options available for color, loading, and usage scenarios. Certified Quality: Products are ISO and CE certified, ensuring compliance with international standards.