产品概述 结构特征 Characteristic of Construction 松套管Loose tube 缆芯填充油膏 Filling compound 双面涂塑轧纹铝带粘结PE外护套 Corrugated aluminum tape coated with PE/co-polymer on both sides bonded to the inner surface of ......产品概述 结构特征 Characteristic of Construction 松套管Loose tube 缆芯填充油膏 Filling compound 双面涂塑轧纹铝带粘结PE外护套 Corrugated aluminum tape coated with PE/co-polymer on both sides bonded to the inner surface of PE sheath 钢绞线作悬挂线 Steel stranded wire as messenger 8字形自承结构 Figure 8 shape