... with Lead-Free Though-Hole Technology, Available in Various SpecificationOne-stop station EMS services providerPCB design, layout, fabrication, assembly and ... scarce parts1 to 22 layers mixed assembly technology,secialized in assembling boards for power bards ,Satety Industry control productsType ... and ISO9001, CE,FCC,ROHS certificationOEM and ODM services are also welcome PCB assembly made in china