... Apparatus for Steel tube,plate,cylinder Ultrasonic Detectot Apparatus for Steel tube,plate,cylinder2Automatic Ultrasonic Detecting Apparatus for Steel Cylinder Technical Document No. ... sizes of cylinders15Crane reducerSet1Servo motor drive, stepless speed regulate16Positioning device, Cylinder clamping deviceset117Pneumatic part for controlling detectorSet2Cylinder, solenoid, manifold, voltage ...