Acoustic Emission Testing - 3
29:41
Acoustic Emission Testing - 4
31:15
Acoustic Emission Testing - 1
29:06
Radiography - 1
31:38
Acoustic Emission Testing - 5
30:32
Ultrasonic testing - 6
17:04
Acoustic Emission Testing, aet, ndt, (English version), non destructive testing, with Animation
28:57
Acoustic Emission Testing - 2
28:25