The covers in Wroclaw are usually made of metal

 

or concrete

 

and are rectangular

 

, round

 

, square

 

, or elliptical

 

.
A small number of round covers intended for sidewalks are surrounded by a square frame, which greatly facilitates the paving work around them

 

.

No colored covers were found in Wroclaw, but gilded covers do exist

 

.

Some of the covers are intended for the Municipality of Wroclaw, and some bear the city emblem

 

. Others belong to the water corporation MPWiK. In many cases, the purpose of the cover is indicated: HYDRANT for water covers

 

, GAZ for gas covers

 

, etc.

The Historical Route
A path running along Nankiera Street that describes events that influenced the city’s history. Each plaque along the path indicates the year, the significant event, and an illustration depicting it

 

.

Manufacturers
The covers were produced by the Polish manufacturers Domex

 

and Norson

 

.
Covers produced by the German MeierGuss Group were also found

 

.

Standards
The most common standards are the European standard EN124

 

and the various load classes (A15 - D00)

 

. The Dutch KIWA standard

 

and the Polish construction mark B

 

can also be found.