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17
2021-12
Factors Affecting Resistivity of Copper Wire
Copper content. The pureness of common copper wire is higher that 99%, while even higher if made in oxygen-free copper. Impurity is harmful to safety of large current load, the higher impurity, the higher resistivity, in other words, higher pureness is better.
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20
2021-12
Copper Conductor
Copper has been used in electrical wiring since the invention of the electromagnet and the telegraph in the 1820s. The invention of the telephone in 1876 created further demand for copper wire as an electrical conductor.
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20
2021-12
Impacts of China Tax Reduction on Copper Industry
As reported in The 13th National People's Congress by premier Li Keqiang on March 5th, China will implement tax reduction policy in this year, cut the Value-Added-Tax (VAT) for manufacturing industries by 3 percent.
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20
2021-12
Some Manufacturing Methods We Adopts in Preparing Copper Materials
In this article, we would like to introduce some manufacturing methods Vekon Copper using with animated images, these technologies can meet most requirements of semi-finished copper materials.
