... RoHS Mark1.UL,SGS,ROHS,IS09001,CE,IPC multilayer pcb with BGA 1.Base Material:fr42.copper thickness:2oz3.board ... :1.6mm4.Surface treatment:ENIG5.layer:4-layerproductive power: Specification Inch (mm) MaterialFR-4 / Hi Tg FR-4 / Lead free Materials (RoHS Compliant) ... TS16949 SGS ULsample picture product authenticationcompany profile 8 Layers PCB with 4/4mil Minimum Line Width/Spacing, BGA, 1.6mm Board ...