The ultimate manhole covers site
ГОСТ - ГОсударственный СТандарт => GOST - state standard or governmental standard

ГОСТ 3634
- a standard from the time of the Soviet Union, of the National Standards Institute of the Soviet Union.
This standard deals with manhole covers made of metal.
The number appearing after the standard indicates the year of the standard, for example ГОСТ 3634-47, year 1947.

A one-line description of the standard

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 21 manhole covers in the site that has this standard
Click for all the covers with this standard

Click for the rest of the standards in the site

The ultimate manhole covers site

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