Detecting whether the engraved round metal Logo loses its paint needs to be combined with its application scenarios and detection targets, using targeted methods. Here are some professional and practical detection methods and steps: First, the visual detection methodObserve the appearance:Use natural light or uniform artificial light source to observe the surface of metal Logo from different angles.Pay special attention to the edges, corners and details of the Logo, which are more prone to paint loss.Check the surface of the Logo for uneven colour, changes in gloss or obvious signs of paint flaking.Use a magnifying glass or microscope:For minor paint loss or paint damage, use a magnifying glass or microscope for a more detailed look.This helps to detect early or hidden paint loss problems and improves the accuracy of detection. Second, physical detection methodTouch detection:Gently touch the surface of the metal Logo with your finger to feel its smoothness and consistency.If you find a roughness or unevenness in the local area, it may be a sign of paint loss.Tape Test Method:Use a piece of moderately sticky tape and gently apply it to the surface of the metal logo.Make sure the tape is in full contact with the logo surface and then quickly remove it.Observe whether there are any paint chips stuck on the tape to determine whether the logo has lost its paint.