8-layers Black oil Board

Layers  :  8L
Thickness   :  1.6mm
Out Layer Copper Thickness : 1 OZ
Inner Layer Copper Thickness : 1 OZ
Min hole size : 0.2mm
Min Line Width/Space :  4mil
Surface finish  : HASL
Application ：Video surveillance system /curity system
Features : 4mil black soldering bridge