Dye Penetrant Testing - 1
34:14
Dye Penetrant Testing - 2
32:12
Visual optical method
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Dye Penetrant Testing - 3
2:26:31
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Dye Penetration and Visual Inspection Techniques
7:49
Liquid Penetrant Testing
11:48
'My jaw is dropped': Canadian official's interview stuns Amanpour
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