Ilie, Stud. Cosmin, Gaman, George Artur, Pupazan, Daniel, Simion, Sorin, Calamar, Angelica, Irimia, Stud. Alin. RESEARCH ON TECHNICAL INSPECTION OF CYLINDERS FILLED WITH COMPRESSED GASES, LIQUEFIED OR DISSOLVED UNDER PRESSURE USING ULTRASONIC TECHNOLOGY. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 14th SGEM GeoConference on NANO, BIO AND GREEN TECHNOLOGIES FOR A SUSTAINABLE FUTURE, 2014. https://doi.org/10.5593/sgem2014/b61/s24.023