In recent study. active thermography has reached a high status as an easy and speedy defects inspection method in a NDT field. This paper newly proposes a non-disassembly and non-contact NDT method using a Vibro-Thermography for detecting and evaluating of fatigue cracks at neck parts of the conveyance roll in the steel making plant. In this method. https://www.hindigyanvishv.com/hot-super-No-Dream-Vinyl-LP-mega-pick/