... , EMI, PCB We are a professional manufacturer and exporter of copper foil in China, and have rich experiences in this field ... ,25,70, 105, 175, 200 micron and even thicker electrolytic copper toil for PCB, CCL, EMI, Lithium Battery, and polymer Lithium ... Battery etc. And we are characterized in STD and THE copper foil. The content of cu is above 99.5%. We ...