... in shenzhen,china We (BQC) is a professional PCB Assembly manufacturer located in shenzhen,china.With abundant experience ... ,manufacturing ,test and quality management ,we are specialized in PCB ASSEMBLY contract manufacturing service,meanwhile, OEM service accepted ,ODM ... QFP, CSP, and BGA packagesLead free (RoHS compliant or tin/lead soldering)In-circuit testing and functional testingHigh-speed SMT ...