Advantages of heavy duty ductile iron manhole cover
1. Long life: corrosion-resistant, zero pollution, maintenance free, can be used for more than 50 years;
2. High load-bearing capacity: The load-bearing capacity far exceeds that of other types of goods, and the load-bearing pressure is too high to prevent safety production accidents such as fractures and car falls;
3. Anti theft: general anti theft design scheme, new anti theft design scheme, high-strength bolt connection between manhole cover and collar, integrated design scheme;
Advantages of heavy-duty ductile iron manhole covers
4. Anti jump cover: Select anti-seismic rubber rings to ensure that the car passes without noise and meets environmental requirements;
5. Good safety factor: The manhole cover is tightly integrated, which is not easy to cause jumping, jumping, noise, movement, etc., and is noise free and reliable;
6. Beautiful and generous: Clean the natural environment of big cities, spray gray black asphalt to make the appearance of goods bright, clean, and tidy;
7. Ground anti-skid: the surface of the manhole cover has a special ground anti-skid pattern design to improve the sliding friction and prevent passers-by from falling down due to rain, snow and ice.
