... SSB for Telephone(Gold Plating With Carbon Oil) 1L, FR-2, 1.2mm, 1OZ, Green solder mask color, Plating Gold SERIALITEMTECHNICAL DATA1Layers1 ... -16 Layers2Base-materalFR-2, CEM-1, FR-4, Metal base, Rogers...3Board thickness8~126 ... .05mm)15HASL(HAL)40u"~1000u"16OSP(Entek)2-5um17Gold fingerNi: 80~250u", Au: 1~5u"18Immersion gold(ENIG)Ni: 80~200u ...