8-layer E-book pcb 1)Base material:FR-4 2)Surface:immersion gold 3)Certificate:UL,ROHS,REACH,ISO9001, 1)8-layer E-book pcb2)Copper ... .1mmPROFILEMILLING MOULDING V-CUT CHANFERCOATINGHAL, LEAD FREE HAL, ENIG/IMMERSION GOLD, OSPSOLDER MASK COLORGREEN, BLUE, BLACK, WHITE,REDTECHNNOLOGYBLOCK,BGA,PEELABLE,CARBON ...