Detailed Product Description Lead free HASL PCB, double-sided PCB, electronic board,pcbOur product ... Min. Line spacing: 0.1mm7) Surface finish/treatment : HASL / HASL lead free, Chemical tin, Chemical Gold, Immersion Silver/Gold, OSP, Gold ... , RoHS, CQC13) Profiling: Punching, Routing, V-CUT, Beveling14) Provides OEM services to all sorts of printed circuit board assembly