1)Diameter:0.10-3.00mm 2)It is divided into 10% and 15% two kinds according to volumetric scale of copper layer 3)It is divided into soft state (A kind) and hard state (H kind) 4)The DC resistivity at temperature of 20 centigrade is less than 0.027Ω.mm2/m 5)It is nominal density is 3.32g/cm3-3.63g/cm3 and 35-37% of pure copper wire 6)Under the same weight ,its length is 2.5-2.7 times that of pure copper wire 7)It has become the most common wire used in CATV and other high-frequency conduct cable 8)It is a bimetallic wire with a copper cladding concentrically covering an aluminum core, integrating the beneficial properties of the wonderful conductivity of copper and the light-weight of aluminum 9)It can be scientifically processed into bare wire and flat wire,and it is the best material for coaxial cable ,computer cable ,telephone cable and shielding cable