... produce 9,10,12,18,35,70,105 micron electrolytic copper foil for PCB, CCL, EMI, Lithium Battery, ... 25,70, 105, 175, 200 micron and even thicker electrolytic copper toil for PCB, CCL, EMI, Lithium Battery, and ... characterized in STD and THE copper foil. The content of cu is above 99.5%. We can also process ... with customer’s samples. copper foil for EMI RFI ...