It is the bimetal wire that makes the metallurgy combination of copper layer and aluminum-core wire, through the way of cover the copper layer on the aluminum-core wire.and also realize the copper layer spread to circumference and portrait way with balanced concentricity.
CCA wire is divided into soft and hard state in the way of statement, but 10 percent to 15 percent according to the volume of copper layer. And every technology index has met the American ASTM B566-93 Standards.






