https://www.bkneddy.com/eddy-current-testing-equipment/lget-553-aluminum-tube-eddy-current-flaw-detector.html LGET-553 Aluminum Tube Eddy Current Flaw Detector Brief Introduction The aluminum tube is a type of non-ferrous metal which may have one or more closed holes which are thick and uniform in cross-section. It is widely used in electrical, agricultural, electromechanical and other industries. Therefore, when using aluminium tubes, we need to test the quality of the aluminium tubes.