The manufacturer’s covers are made of concrete , metal , or a combination of both , and their shape is either round or rectangular .

The round covers are not surrounded by a square frame, even when they are located on sidewalks.

No colored or gilded covers were found, nor were covers bearing city emblems.

Usually, the purpose of the cover does not appear on it, except in rare cases or when it comes to drainage covers .

Standards
Most covers bear the standard mark of the Standards Institution of Israel and sometimes also the Israeli Standard 489, which is specific to covers in areas used by vehicles or pedestrians .
The European standard EN124 and its associated load classes appear on some covers, with the most common load class being D400 .

Typical Covers
Most covers are round concrete covers with a metal frame, and sometimes a metal plate is also attached to them .
Other types of covers can be found at the bottom of this page. There are 7 manhole covers in the site that are made by the Manufacturer
Click for the 7 covers made by Ackerstein (Of these, 0 are best covers)