KS 1555-4:2018

Gully tops and manhole tops for vehicular and pedestrian areas Part 4:Gully tops and manhole tops made of steel reinforced concrete.

Applicable to precast gully tops and manhole tops made of steel reinforced concrete with a clear opening up to and including 1 000 mm for covering gullies, manholes and inspection chambers for installation within areas subjected to pedestrian and/or