... with blind/buried via holesMain base material:FR-1, FR-2, FR-4, CEM-1, CEM-3, High Frequency Laminate with ... tin, plating gold, OSPBoard Thickness:Inner core thickness 0.15-1.5mm, finished board thickness 0.20-3mmCopper Foil Thickness ... Inner Layer registration tolerance:±0.05mmProduction capacity per month:≥10000sqmWelcome to Grandwork, we are looking forward to your inquiry! The best PCB FOR MATEL