生产电力电缆、特种电缆等合作、团结、发展、交流、共赢
圆线同心绞架空导线 扩径钢芯铝绞线 扩径空心导线Round wire concentric lay overhead electrical strander conductors Diameter-expanded CorductorsSupported by round Wires Diameter-expanded Cordutors Supported by Flexible metalic pipe