The laser marking system is essentially a "software-driven" equipment. When switching product models or engraving patterns, the operator only needs to call different drawing files on the computer and adjust the workpiece positioning—the entire model change process can be compressed to a few minutes. This is particularly suitable for scenarios that require custom exclusive marks for different customers, or products that need continuously variable serial numbers (such as VIN codes, QR code traceability). We have a long-term cooperative wholesaler of security equipment parts whose products need to be engraved with unique codes including batch numbers and production dates, with tens of thousands of pieces per day. After adopting an automated assembly line integrated with a laser marking station, fully automatic and error-free marking was realized, production efficiency was increased by more than 300%, and errors caused by manual copying were completely eliminated. This flexibility and efficiency are directly converted into more stable delivery times and more competitive comprehensive costs for buyers. Procurement managers often consider: "Will the initial equipment investment for such flexible production be very high?" From the perspective of long-term return on investment, although the initial investment of laser equipment is higher than that of a single silk screen machine, it saves continuous consumables (ink, screens), plate-making costs, and labor. When dealing with multi-variety production and high-end needs, the total cost is more advantageous.