![blinded hole board](http://www.knpcba.com/uploads/blinded-hole-board.jpg)
hazo fisaka jamba
8-sosona-birao, hazo fisaka hatevin'ny: 2.40mm;
Vita Hatevina varahina: 35um,
Vita: ENIG
![blinded and buired holes board with laser drilling hole](http://www.knpcba.com/uploads/blinded-and-buired-holes-board-with-laser-drilling-hole.jpg)
jamba sy nalevina lavaka birao amin'ny laser fandavahana lavaka
6 sosona birao, birao hatevin'ny: 1.80mm;
Vita Hatevina varahina: 35um,
Vita: ENIG