... : 1 - 22 layers PCB layout, fabrication and PCB assembly and box buildActive/passive components are sourced directly from original manufacturers We ... : plastic injection molding, metal stamping, manufacture and assemblyTesting: PCBA in-circuit testing (agilent), PCBA function testing (Agilent), AOI (omron), X-Ray ... us. 3-in-1 Stud, Voltage and Metal Detector, custom circuit board