Aluminum / copper clad composite wire ( shorted by copper-clad aluminum conductor ) is a kind of metallic core composite material. The red copper and pure aluminum are used as the sheath and core respectively. And the interface between aluminum and copper is bonded tightly. 铜包铝复合线材(简称铜包铝线)是以铝为芯体,在其上包覆一层紫铜,使铜与铝界面实现结合,成为金属基芯的复合材料。