8 Layers PCB with 4/4mil Minimum Line Width/Spacing, BGA, 1.6mm Board Thickness and RoHS Mark1.UL,SGS,ROHS,IS09001,CE, ... IPC multilayer pcb with BGA 1.Base Material:fr42.copper thickness:2oz3.board thickness:1.6mm4.Surface treatment: ... ULsample picture product authenticationcompany profile 8 Layers PCB with 4/4mil Minimum Line Width/Spacing, BGA, 1.6mm Board Thickness and RoHS Mark