Cast iron manhole cover city building

Cast iron manhole cover for gas well use Our advantage 1)The manhole cover can be made in different standards of iron,HT200/QT450-10/SC35. 2)We can guarantee the quality use for long time. 3)Our technical engineer design the product for high accuracy. 4)Your supplied drawing is welcomed. We're a leader manufacturer specialized in making casting manhole cover, which have been sold well around the word. In South Korea, our products take the most majority, and they have a good and stable quality. If you are interest in our products,pls feel free to contact me.