Dongguan Kexin Electronics - kexindg.com. Kexin Electronics specializes in supplying PCB making machines and OEM/USED parts. With over 11 years' experience in this field, our business covers PCB CNC Drilling Routing Machine, PCB Exposure Machine, Target Hole Drilling machine, Wet Processing Line, Spindle Repairing Service, OEM and USED Parts of All Popular Driller and Router Machines, …