CPM offer a wide range of standard heavy duty cover slabs from 4000mm to 900mm as well as a vast range of standard specials which are outside the British and European standard but are regularly used throughout the industry. A bespoke range of 'one offs' that require that "extra special something".
The reinforced concrete 'biscuits' are used to cap a manhole chamber and provide a base for regulating brickwork or adjusting/seating rings prior to installing the manhole lid.
Visit the Marshalls CPM website for more information on Cover Slabs (standard & special)