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 ... 9,10,12,18,35,70,105 mic electrolytic copper foil for PCB, CCL, EMI, Lithium Battery, and Polymer Lithium Battery etc ... . And we are characterized in STD and HTE copper foil. copper foil for EMI