... weight1oz ~ 10ozWeightInner Cu wight1/3oz ~ 6ozLaminate MaterialsFR4(High TG,halogen-free),FR5,ISOLA(FR408,370HR),TEFLON,POLYIMIDE,ROGERS(RO4003,RO4350,RO4450 ... ”)V-cut angle deviation±0.1mm(0.004”)Semi-holeYSurface FinishHASL,HASL pb free,immersion gold,immersion silver,immersion tin,O.S ... business needs and then set out to surpass them. Lead Free HAL, 2 Layers PCB