Ductile cast iron water supply manhole cover

The ductile cast iron water supply manhole cover is detailed as follows: 1. Ductile cast iron is used for water supply manhole cover, which has high strength, good plasticity and strong corrosion resistance. The spherical graphite microstructure in the ductile iron makes the ductile iron more conducive to reducing stress, so the shock absorption performance of the ball ground iron manhole cover is good. 2. The integrated connection of the manhole cover and the well seat can play an anti-theft role, increase the buffer structure, and reduce the sound and jump when the vehicle passes by. The manhole cover material itself can resist the erosion of various chemical substances, and the service life can reach more than 30 years. Ductile cast iron manhole covers play an important role in urban construction, and will continue to play an important role in the future.