copper foil for EMI RFI Lithium battery Manufacturer of copper foil from China Thickness:9,10,12,18,35,70,105 micron copper foil for ... EMI RFI Lithium batterySINFOIL is a professional manufacturer and exporter of ... ,18,35,70,105 micron electrolytic copper foil for PCB, CCL, EMI, Lithium Battery, and Polymer Lithium Battery etc. And we are characterized ...