... .0mmMaterial: FR-4, CEM-1,CEM-3, high TG, FR4 halogen free, RogersMaximum finished board size: 23 × 25 (580 × 900mm)Minimum drilled ... spacing: 3mil (0.075mm)Surface finish/treatment: HASL/HASL lead free, HAL, chemical tin, chemical gold, immersion silver, gold, OSP, and ...