3D printing is reshaping PCB production. Multi-material printing integrates sensors, antennas, etc., directly onto substrates, reducing 30% routing conflicts7. Jieduobang uses digital twin workshop technology to achieve 24-hour urgent prototyping with 92% yield prediction accuracy6. In medical devices, 3D-printed flexible PCBs can bend over 500,000 times, suitable for dynamic monitoring modules in wearable devices