Various
Manhole Covers Site

Standard mark: ITB Poland

General (Click to show or hide)

ITB - Instytut Techniki Budowlanej - Building Research Institute.
An institute supervised by the Ministry of Economic and Technological Development, and tests technologies related to the industry

Institute website https://www.itb.pl/

The Standard in the site (Click to show or hide)


An example of a cover that carries the standard on the "ultimate manhole covers" site. From this lid the picture that appears in the general section was taken.
There are 13 manhole covers in the site that has this standard mark
Click for all the covers with this standard

Click for the rest of the standards in the site

This standard can be found in the following 2 countries (in parentheses is the number of covers in the country):
 Poland (12)     Germany (1)   

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