Detailed Product Description Lead free HASL PCB, double-sided PCB, electronic board,pcbOur product developed ... ) Board finished thickness: 10%3) Material: FR-4, CEM-1,CEM-3, High TG, FR4 Halogen Free,FR-1,FR-24) Max ... Min. Line spacing: 0.1mm7) Surface finish/treatment : HASL / HASL lead free, Chemical tin, Chemical Gold, Immersion Silver/Gold, OSP, Gold plating ...