........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 导购** ** 三山线缆 型号 BV线 芯数 1 护套材质 / 电线较大外径 /(mm) 绝缘厚度 /(mm) 标称截面 /(mm) 用途 / 线芯材质 裸铜线 电压等级 / 绝缘材料 /