pic/other/2014-03-29-01-08-460.pdf
Layer:1-35layers PCB;
Technology: HASL(lead free)/Immersion gold/OSP/Immersion Tin/Immersion Silver/
Finished board Thickness:0.25-7.0mm;
Min. trace Width/Space:3mil/3mil;
Min hole size:0.2mm;
Min clearance:4mil;