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 ... ,12,18,35,70,105 micron electrolytic copper foil for PCB, CCL, EMI, Lithium Battery, and Polymer Lithium Battery etc. And ...