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Pure copper is a sectional fresh red rose, but after the copper oxide film formed on the surface appearance purple, it is often said copper. This copper oxide film has good compactness, so copper has good corrosion resistance and is widely used in construction fields such as building roofs and water supply pipes.
Copper has good plasticity without low-temperature brittleness and is easy to process. Copper having excellent electrical conductivity and thermal conductivity, electrical conductivity after silver is superior to other metals. Among all the commercial metals, copper has a small electrical resistivity and the best electrical conductivity. Therefore, copper is indispensable in electrical engineering, and is widely used in electric wires and cables for electric power and information transmission, as well as electromechanical, transformer, home appliances and other industries. About 60% of the world's copper is used in this area every year.
Copper has good plasticity without low-temperature brittleness and is easy to process. Copper having excellent electrical conductivity and thermal conductivity, electrical conductivity after silver is superior to other metals. Among all the commercial metals, copper has a small electrical resistivity and the best electrical conductivity. Therefore, copper is indispensable in electrical engineering, and is widely used in electric wires and cables for electric power and information transmission, as well as electromechanical, transformer, home appliances and other industries. About 60% of the world's copper is used in this area every year.
Nickel Fluoride 2836999000,45 Alkaline Nickel Carbonate,Nickel Fluoride 98,Fine Chemicals Nickel
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