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we can manufacture pcb ,and the levrel as follows,

The scope of Our PCB’s technology

Layer =20

Board Thickness=0.20-5.0mm

Min board thickness:4layers=0.4mm  6layers =0.80mm

                8layers=1.20mm  10layers=1.50mm

Min line width=0.10mm=4mils 

Min space=0.10mm=4mils

Min hole size=0.25mm=0.10mm

Palted wall thickness=0.025mm=1mils

Min SIM bridge=0.1MM=4mils

Twist and bent≤1.5%

Current strenath=10A

Peel strenath=1.4N/mm

Solder mask abrasion.>4H

Thermal stress=288℃20(second)

Fammability=90V_0

Test Voltage=50-300v

Plated hole dia tolerance    ±0.10mm=4mils

No plated hole dia tolerance ±0.05mm=2mils

Hole position deviation ±0.05mm=2mils

Outline tolerance       ±0.05mm=2mils

Insulation resistance=10Ω(norm)

Through hole resistance<300Ω(norm)

Electric strenath>1.3KV/mm