EN ISO 9001:2008 Certificate For filtering and drying of energetic transformers oil, type 10(20)/0.4 kV, power up to1000 kVA Certificate For repairing of synchron, asynchron and withcollector electromotors, voltage 0.4 kV, power 400 kW Certificate For repairing of energetic transformers, type 10(20)/0.4 kV, power up to 1000 kVA Certificate For electric equipment: punctuation, welding, water pumps, electromagnets, generators