... ThicknessStandard0.004”to0.16 ” ±10% ( 0.1mmto4.0mm±10% )Min. Single/ Double-sided:0.008”±0.004”(0.2mm ±0.1mm ... . hole size 0.0008” (0.02mm) Aspect ratio 20(5:1) Solder Mask Color green,light green,white,black,dark brown ... Depth( residual thickness ) FR-4(1/3+-0.1mm);FR-1,FR-2,CEM-1,CEM-3(1/2+-0.1mm) V-cut angle ... confused with pcb,kindly contact me for more details! OSP Single Side Material CEM-1 PCB