... , stainless steel pipe, welded pipe, aluminum tube, steel wire, double pipe, copper Clad Aluminium, Copper Clad Steel, Metals such as ... testingInstrument Performance:1, Detection speed:0.1m/min~500m/min2, Frequency range:100HZ~1MHZ3, Gain:0~60dB, adjust the volume ... , V-t three time base scan for the choice of real-time display mode8, Automatically record and display the location of defects9, Marking ...