This video explains the main functions and practical uses of manual eddy current flaw detection in a clear, step-by-step format. Watch as we demonstrate how Suzhou Desisen Electronics' technology enables precise, non-destructive inspection of copper rods using specialized probes. You'll see the complete manual testing process, learn how this method identifies internal flaws without damaging materials, and understand its critical role in ensuring product quality for industries like metallurgy and manufacturing.