How Does Laser Printing on Container Security Seals? Laser marking machine on container seals is a common practice to enhance traceability and security. Laser marking ensures a permanent and tamper-evident identification on the seals. Different types of container seals may require specific laser marking techniques. Fiber laser engraving machines are particularly well-suited for this task due to their precision, speed, and versatility. Secure your shipments, enhance traceability, and choose Abedar Laser's fiber laser engraving machines for unmatched precision and reliability in security sealing.