1)multilayer mother board PCB for 3G phone 2) certificate:UL,ROHS,REACH,ISO9001,T/ ... 075mmPROFILE SIZE TOLERANCE±0.1mmPROFILEMILLING MOULDING V-CUT CHANFERCOATINGHAL, LEAD FREE HAL, ENIG/IMMERSION GOLD, OSPSOLDER MASK COLORGREEN, BLUE, ... BLACK, WHITE,REDTECHNNOLOGYBLOCK,BGA,PEELABLE,CARBON INKASSEMBLYLEAD FREE,NOT LEAD FREELEGEND COLORWHITE, BLACK, YELLOW,GREENCERTIFICATEUL,ROHS,REACH ...