We have 10 years of production experience of the manhole covers and gully grates. Our product reputation in the market has very great effet. The quality of our products is very reliable, confined ability strong, durable. We specialize in the production of ductile iron manhole covers, rain olivier, W-type tube, the variety specification is complete, two million tons of annual production. We are a well-estalished company and reliable leader in this industry, the high syandard of workmanship will make you satisfied. We have many specifications, models. To adapt to the schools, hospitals, factories, community, the station, the airport and so on all sorts of public and urban roads and the fast lane, we would be told to classification shading.