The working principle of the metal etching machine and the laser etching machine is different. The metal etching machine chemically reacts the chemical solution onto the metal surface by means of high-pressure spraying. Generally speaking, it is a redox type. The laser etching machine is generated by a high-energy laser speed through a laser and then transmitted by a mirror and irradiated onto a processed object through a collecting mirror, so that the processed article (surface) is subjected to strong heat energy and the temperature is sharply increased, so that the point is rapidly increased due to high temperature. The melting or vaporization, with the trajectory of the laser head to achieve the purpose of processing. Let's take a brief look at the difference between the two: