... FR-4, CEM-3, Teflon, Aluminum, Rogers, High TgSurface finished:Lead Free HASL,Immersion Gold/Tin/Silver, OSP, Gold Finger ... 26"550 x 650mm2Mechanical Drill Min. Finished Holes Size 0.004"0.10mm Finished Holes TolerancePTH±0.003"±0.075mm NPTH ... Impedance (Ohm)±7% - 10%±7% - 10%PCB picturePCB factoryPCB production capacity Double sided PCB 200000 ft2 /MonthMultilayer PCB320000 ft2/MonthHDI PCB80000 ft2 ...