... assembly factory in china, pcba&pcb assembly manufacturers, Rigao Electronics is a professional pcb prototype assembly factory in china, pcba&pcb assembly ... in China, PCBA&PCB AssemblyBasic InfoModel NO.:PCB AssemblyDielectric:FR-4Layer:1~20 LayersBase Material:Fr1, Fr4, Cem-3, ... :Shenzhen RigaoSpecification:UL, UL, RoHs, ISOOrigin:Shenzhen,China PCB assembly and PCBAQ: What does Rigao need for a ...