... weight1oz ~ 10ozWeightInner Cu wight1/3oz ~ 6ozLaminate MaterialsFR4(High TG,halogen-free),FR5,ISOLA(FR408,370HR),TEFLON,POLYIMIDE,ROGERS(RO4003,RO4350,RO4450 ... deviation±0.1mm(0.004”)Semi-holeYSurface FinishHASL,HASL pb free,immersion gold,immersion silver,immersion tin,O.S.P (Entek ... our customers' needs. We take timeto listen to your unique business needs and then set out to surpass them. High TG ...