The manhole cover is a material to cover manholes on the road, in residential areas, industrial parks, export processing zones ... to facilitate dredging of manholes as well as environmental sanitation. Manhole covers also ensure safety for people and animals when traveling on the road. With erratic weather like storms in the Northern regions, or frequent high tides such as in southern cities, manhole covers will help to reduce waste and bulky objects falling into water sources. avoid clogged drains. Terminals and cable covers are two essential products in any water and drainage projects.