1. Use a hot air blow gun: Aim the hot air blow gun at the trademark and blow the surface of the trademark at high temperature. Hot air can soften the glue under the label, making it easier to peel off. Use the scraper part of a small artifact to gently scrape off the label.

2. Use petroleum products: Apply some petroleum products (such as gasoline, lemon oil, alcohol or lemon juice) on the label, let it soak for a few minutes to dissolve the glue under the label, and then use it Use the edge of a small artifact or scraper to gently scrape off the trademark.

3. Use a glue remover: Purchase a glue remover product in the store that is specially used to remove sticky residues. Spray or apply the glue remover on the trademark, wait for a period of time, and use a small artifact to gently remove the glue. Gently scrape off the label.