According to the latest international standards, the wall thickness of heavy-duty ductile iron manhole covers approximately 13mm above party can achieve load capacity. Heavy-duty ductile iron manhole covers main application areas: Available in urban construction of water supply, sewerage pipeline inspection wells, heating, gas manholes, postal services, telecommunications, communications cable tube wells, wells power lines, street lights well, fire wells, valves well, corrosion engineering, ditch cover. And can be manufactured according to customers' special needs.

Heavy-duty ductile iron manhole covers Features:

1. Long life: corrosion resistance, pollution-free, maintenance-free, can be used for more than 50 years.

2. High capacity: carrying capacity far more than other types of products, bearing pressure, crack-proof vehicles falling and other accidents.

3. Anti-theft: general security design, design of new anti-theft, Manhole covers and high-strength bolts, integrated design.

4. Anti-jump cover: The shockproof rubber ring, so that the vehicle passes produce no noise, environmental compliance.

5. Security is good: binding covers tight, no jump, Rocker, sound, movement and so on, no noise, safe and reliable.

6. Aesthetics: beautify the urban environment, Spraying black asphalt to make products look bright, clean and tidy.

7. Anti-Slip: covers the surface of a special non-slip pattern, increase the friction, preventing the rain, snow, ice covering pedestrians slipping.