The ultimate manhole covers site
Organization ZIK - Zavod za ispitivanje kvalitete d.o.o. - The Institute for Quality Assurance is an institution established in 1957 (during this period Croatia was a member of Yugoslavia) and is now the oldest and largest institution for quality assurance in Croatia.

A product that meets the standards of the Institute is marked with the ZIK standard

The web site of the institute that issue the Standards stamp

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 6 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

The ultimate manhole covers site

Initiating the site - Eli Zvuluny - Programming and building the site Possible Worlds Ltd. Possible Worlds Ltd. © 2017-2024

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