Physical methods and the use of chemical agents.

1. Use tools such as scrapers, pliers, files, sandpaper, etc. to carefully scrape or peel off the trademark from the sheet metal. This method requires care not to damage the sheet metal surface.

2. You can use some chemicals or solvents to dissolve or soften the glue or adhesive on the trademark. Before use, test in a less conspicuous area to make sure the chemical will not cause irreversible damage to the sheet metal. At the same time, you need to pay attention to safety measures when using chemical agents, such as wearing protective gloves.