Following The two substrates are bonded, either an ultraviolet (UV) beam is directed, or warmth or simply a stress is partly applied the sealant in between the very first and next substrates 510 and 520, for placing the sealant to fix the very first and next substrates 510 and 520 https://jiutustore.com/collections/optical-bonding-machine/Optical-Bonding-Machine