1)4-layer pcb for smart card with ENIG surface 2 ... /S16949 3)Min hole size:0.3mm 1)4-layer pcb for smart card with ENIG surface2)Min hole ... ,ROHS,REACH,ISO9001,T/S16949 ITEMSSPECIFICATIONLAYER1-26BOARD MATERIALFR-4,CEM-1,CEM-3BOARD THINCKNESS0.2mm-6.0mmCAMBERD ... , LEAD FREE HAL, ENIG/IMMERSION GOLD, OSPSOLDER MASK COLORGREEN, BLUE, BLACK, WHITE,REDTECHNNOLOGYBLOCK,BGA,PEELABLE,CARBON INKASSEMBLYLEAD FREE ...