Drainage, Manholes and Gulleys
Wiki PageManholes and GulleysTask / DescriptionSlow Ave Fast Units Concrete Pre-Cast Manhole Units, 610 x 455 x 51 mm- 1.2 - hrs/no Concrete Pre-Cast Manhole Units, 990 x 610 x 64 mm- 1.6 - hrs/no Brickwork Manhole, 1.0 brick engineering- 0.3 - m...