Covers by this manufacturer are made of metal and are square or rectangular in shape.
Round covers intended for pavements are often surrounded by a square frame to make paving work easier . This pattern characterizes many of the square covers produced by this manufacturer.

No colored covers were found for this manufacturer, but gilded covers were found .
City emblems appear on some of the manufacturer’s covers . Notable is a drainage cover from the city of Breda, where the drainage slots are shaped like the city’s emblem .

The intended use of the cover usually appears on it: water – RW (REGENWATER – rainwater), drainage , or sewage (VUILWATER – dirty water) .

The year of manufacture usually does not appear.

Standards
The European standard EN124 and its associated load classes appear on many covers, with the most common load classes being B125 and D400 .
The Dutch standard K13347 appears on many covers , as does the Dutch KOMO certification .

Typical covers
Most covers feature a background of squares . Additional types exist, as shown at the bottom of this page. There are 5 manhole covers in the site that are made by the Manufacturer
Click for the 5 covers made by Struyk Verwo Aqua (Of these, 1 are best covers)