We can manufacture all kinds of ductile iron and gray iron castings, the main products includes manhole covers, channel grates, surface boxes, water meter boxes, pipe fittings. The advantage of our manhole cover is non-slip and safe, easy installation, easy to clean, excellent anti-pressure and attractive appearance . The load class for our manhole cover is EN124 D400 and the surface treatment is black bituminous paint, epoxy coating or customized.