... HT- W150 is used for high accurate laser spot welding on miniature components. Jewelry laser welding machine is used for aperture mending, ... pass through Nd3+:YAG crystal, exciting ND3+:YAG laser, then the laser light pass through resonant cavity, forms a beam ... , After amplification, reflection, transmission and other processes, the laser is projected to the object surfaces that need for welding ...