Ductile Iron Manhole Covers
Ductile Iron Manhole Covers. BS EN 124-2:2015 is the key standard for specifying or selecting gully tops and manhole tops made of cast iron. It categorises the various areas where they can be installed from Group 1 (Class A15), which can only be used by pedestrians and pedal cyclists, through to Group 6 (Class F900), suited to areas imposing ...
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