The bright history of Nasb Niroo Co. is filled with the installation of over 10,000 km overhead power line with various voltages in Iran and 250 km overhead power line in Senegal (190 km for 225 kW line and 60 km for 33 kW line), and also wiring about 170 km of 500 kW line in Turkmenistan and installation of nearly 100 electrical substations.