... to mass production, one stop from pcba design to finished product manufacturers, Rigao Electronics is a professional high precision pcb ... to mass production, one stop from pcba design to finished product supplier and factory, we can offer you customized products ... ,FR4 Halogen Free,FR-2,Aluminum3Board thickness0.2mm-7mm4Max.finished board side500mm*500mm5Min.drilled hole size0.25mm6Min.line width0. ...