Ultrasonic Detectot Apparatus for Steel tube,plate,cylinder Ultrasonic Detectot Apparatus for Steel tube,plate,cylinderAutomatic Ultrasonic Detecting Apparatus for Steel Cylinder Technical Document No. ... of detectorSet2Include 8 detectors, detector holder, wearing plate, etc.09Stainless steel water caseSet1Automatic mechanical electronic and double control10Lay-off systemSet1Cylinder drive11Water ...