2. Or find a stick with the same thickness as the bracelet, put the bracelet on the stick, cover it with a layer of soft cloth, then gently tap the position to be rounded with another stick, and pay attention to the deformation state of the surface, and then reshape the bracelet, so that the surface of the bracelet will gradually return to a circle.
3. You can also open the surface of the bracelet, wrap a thick layer of cloth around its curved part to prevent it from being damaged when knocking, then press it in a wine bottle for plastic treatment, and restore it to its original state through reaction, or send it directly to a jewelry processing shop for treatment.