The types of manhole valves vary depending on where they are to be used. For example, to access underground facilities, the caps are made of concrete, cast iron, cast iron concrete, composite concrete, and polyethylene. In places where there is heavy traffic, heavier valves are used to keep them firmly in place when passing through.دریچه منهول

Galvanized prefabricated tank is a solution to accelerate the construction of galvanized source on site. Of course, this type of tank has other advantages as well. Due to the lack of welding in the body, galvanized prefabricated sources have a longer life and can be used as a water tank. The capacity of the galvanized prefabricated source can also be changed after installation. The speed of installation of this type of tanker can solve many problems of the employer. Prefabricated metal source is always one of our main suggestions for running a tanker.مخزن گالوانیزه