Heavy-duty ductile iron manhole covers are a common type of industrial equipment, and their performance advantages are also significant compared to manhole covers made of other materials. So what are the specific aspects? Then, let's briefly introduce them.

First of all, this equipment is built using ball mill cast iron, and the quality of this cover also involves the ball rate of the problem, under normal circumstances, the common paint is cast processing rust-proof asphalt paint, and ductile iron covers Therefore, it also has the advantages of high strength, good toughness.

Second, the manhole covers are also highly resistant to corrosion and their service life is twice that of gray iron pipes and 5 times that of ordinary steel pipes. In addition, tea machinery in this also and we all say that the plastic cover in the well is not bad, and high steel almost, and because the ball-shaped graphite ball mill is a micro-structure, in reducing the vibration capacity, ductile iron is also higher than the cast Steel material, so it is also more conducive to reducing stress.