12L rigid-flex board

Layers     12L
Structure:4R+4F+4R
Thickness   2.0
Out Layer Copper Thickness: 1 OZ
Inner Layer Copper Thickness:1 OZ
Min hole size: 0.25mm
Min Line Width/Space:  4mil
Surface finish :ENIG
Product use :Intelligent robot
Difficulties: high mult layer Rigid-flex board