1.Mobile phone LCD circuit board 2.UL,SGS,ROHS,IS09001,CEC ... high quality 4.20years in Pinted circuit boar 1.Mobile phone LCD circuit board2.UL,SGS,ROHS,IS09001,CEC3.Fast ... Inch (mm) MaterialFR-4 / Hi Tg FR-4 / Lead free Materials (RoHS Compliant) /CEM-3/CEM-1/AluminiumLayer No.1 ... )Aspect Ratio6:1Hole Registration0.004"(0.1mm)PlatingHASL2.5umLead free HASL2.5umImmersion GoldNickel 3-7um Au:1-3u''OSP0. ...