Place of implementation: Tehran-Pakdasht Client: Mapna Company Date of start: 2018 Volume and type of work: Design, supply of equipment and installation and operation of Damain water treatment plant of Damavand combined cycle power plant with a capacity of 10,000 cubic meters per day transfer from the reservoir and Raw water purification, water desalination system by reverse osmosis (RO) ion exchange system to produce soft water (Demin water), regeneration system, storage and injection of chemical substances, neutralization system Completion date: year 88 including: water purification in two parallel lines including pre-treatment with a capacity of 400 cubic meters per hour and main treatment with a capacity of 250 cubic meters per hour and including drinking water, tap water, sanitary water, water storage tanks, fluid transmission lines A: steel welding operation 65000 inches in diameter, carbon welding 25,000 inches in diameter, welding 9,000 inches in diameter PVDF-PVC B: Construction of 10 storage tanks weighing 450 tons, construction of supports over 51,000 kg, installation of equipment over 35,000 kg, installation of centrifugal pumps over 35 C: installation More than 350 pieces of control equipment and power panels and performing related tests for more than 35,000 meters of internal cabling of cable trays and terminations and performing related tests.