... testing flaw detector 3.Scan mode: A,B,C 1.pipeline Ultrasonic test standard / UT of low carbon tubes2.testing: NDT ... , zirconium tubes, and book-walled pipe, seamless steel tubes, welded gas and oil pipelines, nonferrous metals, ferrous metals and some non ... , zirconium tubes, and book-walled pipe, seamless steel tubes, welded gas and oil pipelines, nonferrous metals, ferrous metals and some non ...