Transmission line and main collector in the north of Qom city (Lot2, Lot1)

Implementation of 6 km long sewage transfer line by open trench method with 2000 mm diameter GRP pipe at a depth of 15 meters, implementation of 12.5 km long tunnel method main sewer line with 500 and 600 mm diameter double polyethylene pipe and GRP pipe with a thickness of 1000 and 1200 mm and a depth of 13 meters