ED copper foil for shielding, EMI, RFI, PCB. Manufacturer of copper foil from China Thickness:9,10,12,18,35,70,105 ... micron SINFOIL is a professional manufacturer and exporter of Copper Foil in China, which has rich experiences in this field. We ... produce 9,10,12,18,35,70,105 micron electrolytic copper foil for PCB, CCL, EMI, Lithium Battery, and Polymer Lithium Battery ...