![blinded hole board](http://www.knpcba.com/uploads/blinded-hole-board.jpg)
bọọdụ oghere kpuru ìsì
8-okpukpu-osisi, osisi-okpukpu: 2.40mm;
Ọkpụkpụ ọla kọpa agwụla: 35um,
Emecha: 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)
bọọdụ oghere kpuru ìsì na nke nwere oghere mkpọpu laser
6 osisi oyi akwa, ọkpụrụkpụ osisi: 1.80mm;
Ọkpụkpụ ọla kọpa agwụla: 35um,
Emecha: ENIG