Oxygen-free copper wire is made of oxygen-free copper wire made of.The properties of the oxygen free copper wire and oxygen-free copper essentially the same.Literally oxygen-free copper wire seems to be no oxygen, but it's not.Oxygen-free copper wire or containing trace amounts of oxygen and impurities.Oxygen-free copper wire has good oxidation resistance, is often used to transmit video monitoring."Network" effect on oxygen free copper wire.That is to say Internet cable oxygen-free copper wires are often made into use.