郭传琳

Circuit cutting tool of PCB (Printed Circuit Board)

陈国栋, 吴浩, 黄锦章, 2013 .

PCB (Printed Circuit Board) anti-static hairbrush with dustproof cover

陈国栋, 吴浩, 黄锦章, 2013 .

Jig for measuring voltage of PCB (printed circuit board)

郭传琳, 2012 .