... production s We offer LED PCB,FPC,Double Side PCB, Multi-Layer PCB, F4BK PCB, PTFE PCB, Ceramic PCB, Rogers PCB, Aluminum PCB.1,Layers: 1-22 layers2 ... -5oz(17µ M-175µ M)8. Surface Finishing: HASL, Lead free HASL, ENIG, Immersion Tin, Immersion Silver, Immersion gold, OSP, Carbon ink ... )14. DHL, UPS, FedEx, TNT (door to door) LED printed circuit board (led pcb)