1.Immersion Gold PCB Printed 2.UL,SGS,RohsCertificated 3. ... cutouts,complex,irregularBoard TypeRigid, Flexible, Rigid-flexibleBoard MaterialFR-4 glass epoxy, FR-4 high Tg, Rohs compliant,Aluminum,Rogers ... .01'',0.25mm, or 10milsSurface FinishHASL,Nickle,Immersion Gold,Immersion Tin,Immersion Silver,OSP,etc.Board Thickness Tolerance ... method for PCBAView of Our Workshop Immersion Gold PCB Printed