... Quality Approvals ROHS UL Turnkey PCBA Function electronic circuit design and development services: 1, PCB Assembly (Lead ... conventional 'thru-hole' PCB assembly7, Latest dual wave, flow soldering equipment8, Programmable Selective Soldering9, Analogue, Digital, ... manufacturing control documents 23, Early prototype build and design analysis24, Design of test fixtures and software development25, Unique ...