1.We have 10 years experience in PCB 2.UL,SGS,ISO T/S,IPC approved 3.Quick ... turn,OEM Service 4.Low price high quality PCB printed circuit board, PCB, Multilayer pcb.Our PCB Technical Specifications:1.Base material: FR4, Aluminum, ... linewidth of Idents4mil12Min Height of Idents25mil13Finishing TreatmentHASL (Tin-Lead Free), ENIG(Immersion Gold), Immersion Silver , Gold Plating (Flash Gold), OSP, ...