... of substrates Small prototype runs Large scale production runs ENIG, Immersion Silver, Lead Free HASL Edge plating, plated slots Blind / Buried ... : ±0.125mm, Punching: ±0.15mmSurface finish/treatmentHASL/HASL lead free , Immersion GoldCertificate ROHS, ISO9001:2008, SGS, UL certificate.