Printed circuit assembly in China, 6Layer board with Immersion Tin Finished 1. PCB P / N: 8698 2. Material: FR-4 3. Layer: 6L 4. Board thk: 2.mm 5. copper thk: 35UM 6. Smallest hole size: 0.25MM 7. No. of holes (pcs): 365 8. line w / s: 5 / 4mil 9. Impedance control. Y / N (Tol%): Y 10. Surface: Immersion Tin 11. Solder Mask Silkscreen: white 12. Single board size: Dim X (mm): 129; Dim Y (mm): 298 13. Special: Hi-Tech Multilayer Circuit Boards with components assembly 14. Routing / Punching: CN