Based on its class, we can distinguish cast iron manhole covers into two types, namely heavy-duty manhole covers and medium-duty manhole covers. While in terms of design, the heavy-duty manhole cover type has the same design as the medium-duty manhole cover type. Some are square, round, hinged, and without hinged. Then what are the differences between […]
ductile iron manhole cover
Recessed Cast Iron Manhole Cover
Cast iron manhole covers have many designs, one of them is a recessed cast iron manhole cover. This cast iron manhole cover has a different cover design from the manhole covers in general. Generally, manhole covers have a flat design on the outside and hollow on the inside. While the recessed manhole covers have a […]