Providing A Service Consisting In The Maintenance And Operation Of Central Heating Installations, Hot Water Installations, Water And Sewage Installations, Oil Boiler Rooms, Heat Distribution Centers, Deep Wells, Water Treatment Plants, Hydrophores, Oxygen Gas Installations, Water Supply Networks And Sewage Systems (Including Combined Sewage Systems, Hydrant Networks (External)) For The Hospital Of Our Lady Of Perpetual Help In Wołomin At Ul. Gdyńska 1/3 - 1330644