Laser edge sealing. In order to ensure that the edge will not fall off after sealing, the German Halma 60 million adopts laser edge sealing technology. This technology is an innovative technology patented by the German Halma Group. Using the laser device, the functional layer on the edge band is quickly melted before the edge band comes into contact with the workpiece, and then the pressing wheel group immediately presses the edge band onto the workpiece.