KS 1555-3:2018

Gully tops and manhole tops for vehicular and pedestrian areas Part 3:Gully tops and manhole tops made of steel or aluminium alloys.

Applicable to gully tops and manhole tops made of mild steel, stainless steel and aluminium alloys whether in combination with concrete or not, with a clear opening up to and including 1 000 mm for covering gullies, manholes and inspection chambers