Home Infrastructure Environmental Sanitation Air pass for drainage and sewerage Air pass for drainage and sewerage Description Save Aerial pass for drainage pipes of 20m 30m 50m with construction details Format DWG File size 365.06 KB DOWNLOAD DWG share your appreciation Related Posts Anthracite sand filter Calculation of the maximum depth sanitary project Wastewater pretreatment in Cancun Sludge biological reactor tank sand removal intake Hydraulic profile of a treatment plant. Slow filtration plant – water treatment plant culvert construction details Gray water treatment plant NDW Culvert Detail of sewerage or water inspection camera Water and drainage sanitation project El Palmar islet dredging study Processing facilities Rainwater passage sewage lifting plant works of art for roads Septic tank for small towns treatment clarifier