Core Viewpoint - Tianzhun Technology (688003.SH) has indicated that its products, including laser direct imaging equipment, CO2 laser drilling equipment, and PCB AOI equipment, are applicable in the manufacturing process of high-end PCB packaging substrates [1] Group 1 - Tianzhun Technology's laser direct imaging equipment is utilized in high-end PCB packaging substrate manufacturing [1] - The CO2 laser drilling equipment offered by Tianzhun Technology is also relevant for the same manufacturing process [1] - PCB AOI equipment from Tianzhun Technology plays a role in the production of high-end PCB packaging substrates [1]