bulgaria-sofia: plumbing and drain-laying work./ automated installation for watering lawns in the "vasil levski" nsa from its own water source./ construction and commissioning of an automated irrigation system with rotary sprinklers for drilling water from its own water source - tube well "tk-nsa-studentski, sofia", with water absorption permit no. 11591068/20.06.2017. and commissioning certificate no. 438/23.05.2019, in the yard of the national security agency, sofia, studentski grad, within the boundaries of the land with identifier 68134.1605.2300 according to the code of civil procedure of the city of sofia.