... 1.20mm certificate:UL,ROHS,REACH,SGS Double-Sided Gold Board CategoryItemHigh-volume processing capacitySample and small batch ... Product CategorySingle / dual panel, multilayer, high-frequency board, with buried / blind plateMulti-material mixing pressureSurface TreatmentChemical ... size600mmX1200mm1200mm-2000mmImpedance Impedance Tolerance±10%±5% Double-sided gold pcb board,immersion gold pcb ...