1. The plugin line digital tube plugs flat line to view and carefully, nickel-based correction rigid-flex pcb single-sided pcb smd assembly service PCBA Printed circuit board assembly. Suppluy all kinds of pcba...Function: control pcb  1. The plugin line digital tube plugs flat line to view and carefully, nickel-based correction2. After tested, plug needs a white pla

hantuo brand pcb making