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Layer:18
Board thickness： 3.66+0.20 /-0.3 mm
Aspect ratio： 7.6
Size： 462*614 mm
Min distance between inner PTH and line： 0.16 mm
Min line width/space： 0.28 mm/0.1 mm
PTH copper weight：50.8 um
Finish: ENIG
Impedance: 50±5Ω
Copper weight: 2OZ
multilayer pcb
