Introduction to Ultra-Thin 4-Layer FR4 PCB 

Bella introduce an ultra-thin 4-layer FR4 PCB, measuring just 0.4mm thick and finished with OSP. What sets it apart is its inner outline, where advanced profiling technology is used for laser-cutting, ensuring clean and precise R-corners. With 639 LEDs soldered onto the board, it offers a unique design. Interested? Feel free to contact us anytime.
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