EN124 Standard FRP Manhole Cover Light Weight High Strength Square BMC SMC Fiberglass Manhole Cover

• Light weight: Only 1/4-1/3 the weight of iron covers, facilitating transportation, installation, and emergency repairs.
• High strength: Made with polymer synthetic materials and steel skeleton, molded under high temperature and pressure, with test results exceeding 40 tons.
• Anti-theft: Low recycling value and unique constraint connection structure prevent theft and "urban blackhole" accidents.
• Corrosion resistant: Naturally withstands acid, alkali, salt, and sewage environments with technical and economic advantages.
• Excellent sealing: Prevents oil/gas leakage with anti-static function to reduce accident rates.
• Long service life: Designed to last more than 30 years.
• Aesthetic design: Surface patterns can include company logos for branding and durability.
• High precision: Minimized gap between cover and seat eliminates common issues like noise and vibration, improving road performance.

SND has specialized in metal goods manufacturing for 20 years, utilizing advanced techniques including sand casting, lost wax casting, lost foam casting, and precision machining. We work with various materials including cast iron, steel, stainless steel, and aluminum, offering comprehensive surface finishing and assembly services.

Our expertise spans multiple industries including automotive, rail transportation, agricultural machinery, chemical, energy, electricity, water, air compressor, and construction sectors.

ISO9001-certified quality control systems ensure consistent reliability, with comprehensive inspections including spectrometer analysis, ultrasonic testing, magnetic inspection, permeability checks, and tensile/yield strength evaluations.