Signage signs are closely related to our lives and can be found everywhere in our daily lives. The identification signs mainly include: national grid identification, traffic signs, general warnings, and other signs. The traditional sign etching uses artificial splash corrosion, which not only has low efficiency, large taste in the workshop, but also increases labor costs for workers. In order to meet the market demand, our company has introduced a sign etching machine, and the size of the etching machine can be customized according to the production capacity. Below, we introduce two common etching processes: