... ,FR4 Halogen Free ,Rogers,HF,NELCON,TACONIC,ARLON,etcMax. finished board size:23*25mil(580mm*900mm)Min.drilled hole size:3mil ... PCB,HDI PCB ,PCB of single,Double and Multi-layers,High frequency PCB ,etcPackingInner :Vacuum packing/Plastic bagOuter :Standard carton packing printed circuit board ...