PCB board assembly, EMS ~Surface mount, PCBA prototype ~ DIP,auto insertion ~ final box build ... , PCB assembly. 1, full turnkey solution( SMT, AI , PCBA , testing , casing and packing,)2, fast response for quotation and ... on site production technical support and after sales service. PCBA level process:1, (Lead Free PCB Assembly,RoHS):2 ... product serializations Working flow chart: PCB board assembly PCBA