依顿电子：目前公司通孔板具备20层及以上的生产能力

Group 1 - The company has focused on the research, production, and sales of high-precision and high-density double-sided and multi-layer printed circuit boards (PCBs) since its establishment [2] - The company has the production capability for through-hole boards with 20 layers and above, with specific product layers depending on customer order requirements [2]