Home Infrastructure Environmental Sanitation Manholes Manholes Description Save D-type manholes with installation detail Format DWG File size 56.60 KB DOWNLOAD DWG share your appreciation Related Posts Biological filter in sewage and rainwater sanitation Simple culverts concrete pipes Treatment plant and infiltration ditches type a camera Residual water treatment plant sewage pumping station Sanitation connection Cross pipe under roadway Processing facilities mailbox sand removal project sewer plan Channel plan; channel design Sewer installation Sanitary drainage Drain tray detail storm sewage Drainage boxes greater than 8m Residual water treatment plant Processing facilities