Non-destructive testing of materials is one of the most important operations performed on the industrial product before starting the process of mass production, and is not limited to the testing of products but went beyond that to testing the raw materials to determine the suitability of manufacturing. There is a lot of non-destructive testing, which is used in the labs, including x-ray and gamma-ray and also ultrasonic test. This book consists of five chapters each chapter which represents the experience of the process on the way non-destructive test and a range of materials and engineering products.