8 Layers PCB with 4/4mil Minimum Line Width/Spacing, BGA, 1.6mm Board Thickness and RoHS Mark1.UL,SGS,ROHS,IS09001,CE, ... 1.6mm4.Surface treatment:ENIG5.layer:4-layerproductive power: Specification Inch (mm) MaterialFR-4 / Hi Tg FR-4 / Lead free Materials (RoHS ... : 2000 TS16949 SGS ULsample picture product authenticationcompany profile 8 Layers PCB with 4/4mil Minimum Line Width/Spacing, BGA, 1.6mm ...