How is the price of manhole valve determined in 1401?|ILNA News Agency

2022-05-19 09:45:40 By : Ms. Mo Xiang Guan

Manhole valve is a cover of different materials that is placed on sewage manhole, telecommunication manhole, water and electricity network manhole, etc.Manholes are man-made channels for the experts of each of these networks to have easy access to check its lines and conditions.The manhole cover is a movable valve that can be opened and closed if necessary.This valve prevents people, objects and vehicles from falling into the canal.Now that you are familiar with this valve, it is better to know the different types to check the price.