1.High precision 2.PCB size based on gerber file 3.HASL, OSP,immersion gold 4.100% test 5.UL ... 0ozInner Cu wight0.5oz ~ 3.0ozLaminate MaterialsFR-4,FR-1,,FR-2,CEM-1,CEM-3Board Cutting Max. number of layers8Min ... PlatingMin. hole size0.0008” (0.02mm)Aspect ratio20(5:1)Solder MaskColorgreen,light green,white,black,dark brown,yellow, ... ( residual thickness )FR-4(1/3+-0.1mm);FR-1,FR-2,CEM-1,CEM-3(1/2+-0.1mm)V ...