4 layer Rigid-Flex pcb

4 Layer Rigid-flex pcb 1.Layer:4 2.Material:FR4 3.Board finished thickness:0.9mm 4.Min.Lin width:5mil 5.Min.line spacing:5mil 6.Surface finish/treatment:ENIG 7.Copper thickness:1OZ 8.E-Tess and visual inspection 9.Inner packing:vacuum packing/plastic bag Outer packing:standard carton packing apply to industrial application, medical equipment, power supply and so on.PCB type: 1>Rigid board from double sided to Layer30,we are professional to build HDI,Back plane,impedance control board.2>FPC and Flex-rigid board 3>and some special board,eg PTFE,Aluminum base,Rogers,Polyclad,Arlon,Getek,Nelco raw material board