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://safeersappliancers.shop/product-category/rangemaster-classic-delux-cdl110dffcr-c-110cm-dual-fuel-range-cooker-cream/