The manufacturer’s manhole covers are made of metal and come in rectangular , square , or circular shapes.

No colored or gilded covers have been found from this manufacturer. City emblems also do not appear on their covers.

The purpose of the cover is generally not indicated, except in the case of communication covers , or it may be inferred from the cover itself (for example, drainage ). The year of manufacture usually does not appear.

Standards
Most covers bear the British Kitemark and the British Standard BS497 . The European standard EN124, together with its associated load classes, also appears on many covers, the most common classes being B125 and D400 .

Typical Covers
Many covers feature a background of squares or diamonds . The trade names used by this manufacturer are taken from cloud names: NIMBUS , CUMULUS , CIRRUS . There is also a type called UNIFORM , which does not appear to be related to cloud names.

Many covers (regardless of their trade name) feature a background of squares with a central ring bearing the manufacturer’s details and additional technical information.

Many covers are diagonal (square or rectangular, divided into two triangles, with the opening done by lifting one of the triangles ). There are 20 manhole covers in the site that are made by the Manufacturer
Click for the 20 covers made by Durey Castings (Of these, 0 are best covers)